Note: Descriptions are shown in the official language in which they were submitted.
CA 02461496 2007-02-07
COLLATED ROAD MARKER ASSEMBLY AND SYSTEM AND METHOD -
FOR AUTOMATICALLY APPLYING COLLATED ROAD
MARKERS TO ROADWAY SURFACES
FIELD OF THE INVENTION
The present invention relates generally to tempo-
rary raised pavement markers (TRPMs) and permanent raised
pavement markers (RPMs) which are adapted to be fixedly se-
cured to roadway surfaces in order to, for example, tempo-
rarily define traffic lanes or the like within construction
zones, work sites, or maintenance or repair areas, or to
permanently define traffic lanes upon roadway or highway
surfaces, and more particularly to a new and improved col-
CA 02461496 2004-03-19
lated assembly of such temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs), and a
new and improved system and method for automatically serial-
ly applying such collated temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs) to
roadway surfaces in order to in fact temporarily define the
traffic lanes or the like within the construction zones,
work sites, or maintenance or repair areas, or to permanent-
ly define traffic lanes upon roadway or highway surfaces.
BACKGROUND OF THS INVENTION
Various types of roadway markers have been utiliz-
ed in connection with a variety of traffic control applica-
tions. Many roadway markers are adapted to be permanently
attached or secured to the road surface so as to permanently
delineate traffic lanes upon the roadway, while other road-
way markers are adapted to be temporarily attached or secur-
ed to particular road surfaces in order to temporarily de-
lineate traffic lanes within construction zones or other
work areas. Accordingly, the latter type of roadway markers
are known as temporary roadway markers and are usually at-
tached or secured to the road surface by means of a suitable
adhesive that can retain the roadway marke.r in its place up-
on the road surface during the temporary life of the roadway
marker. More particularly, temporary roadway markers can
serve, for example, as a means for identifying edge portions
of the roadway, or alternatively, to delineate traffic lane
lines and thereby demarcate separate lanes of traffic from
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CA 02461496 2004-03-19
each other in and around construction sites and other work
zones. After the construction or other road work is complet-
ed, the temporary roadway markers are removed. To be effect-
ive, the temporary roadway markers must clearly be capable
of alerting motorists to the fact that they are nearing or
entering a construction zone or work area, and therefore,
the temporary roadway markers must in fact be effective both
during daytime hours, nighttime hours, sunny conditions,
cloudy conditions, inclement weather conditions, and the
like. More particularly, one type of temporary roadway mark-
er that has been extremely successful or effective in pro-
viding short-term temporary markings upon roadways both dur-
ing daytime and nighttime hours, and which has also been
able to adequately withstand the various impact forces that
are normally impressed thereon by daily roadway vehicular
traffic so as to in fact provide the desired service life
required in connection with the installation of such tempo-
rary roadway markers, has been that type of temporary road-
way marker which is known in the industry as a temporary
raised pavement marker (TRPM). Examples of such temporary
raised pavement markers (TRPMs) are disclosed within United
States Patent 6,109,820 which issued to Hughes, Sr. on Aug-
ust 29, 2000, United States Patent 5,788,405 which issued to
Beard on August 4, 1998, United States Patent 5,460,115
which issued to Speer et al. on October 24, 1995, United
States Patent 4,991,994 which issued to Edouart on February
12, 1991, and United States Patent 4,445,803 which issued to
Dixon on May 1, 1984.
As can readily be appreciated from FIGURE 1, which
corresponds substantially to FIGURE 1 of the Speer et al.
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patent, it is briefly noted that an exemplary temporary
raised pavement marker (TRPM) 10 is seen to have a substan-
tially L-shaped configuration wherein the horizontally dis-
posed leg portion 12 thereof is adapted to be fixedly secur-
ed or attached to the road surface by means of a suitable
adhesive which is allowed to set, while the vertically up-
standing leg portion 14 is adapted to be visually seen by
the oncoming motorist. A transition region 26 flexibly in-
terconnects the vertically upstanding leg portion 14 to the_
fixed horizontally disposed leg portion or base member 12. A
pair of rib members or ledges 28,28 extend substantially
perpendicular to the upstanding leg member 14 and serve to
define a space or channel 22 therebetween. A suitable re-
flective strip 23 is adapted to be fixedly disposed within
the space or channel 22 so as to reflect sunlight or a vehi-
cle's lights in order to provide the oncoming motorist, as
indicated by the arrow 25, with a visual indication of a
traffic lane, or alternatively, that the motorist is enter-
ing or approaching a construction zone or work area. Altern-
atively, in lieu of the reflective strip 23, the entire
marker 10 may simply be brightly colored so as to similarly
provide the oncoming motorist with the necessary visual
warning. _
With reference being further made to FIGURE 2, a
typical, conventional, PRIOR ART temporary raised pavement
marker (TRPM), which is similar to the temporary raised
pavement marker (TRPM) 10 disclosed in FIGURE 1 of the pre-
sent drawings as well as within FIGURE 1 of the Speer et al.
patent, is disclosed at 110 and is seen to likewise have a
substantially L-shaped configuration. In particular, the
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temporary raised pavement marker (TRPM) 110 comprises a hor-
izontally disposed leg or base member 112, and a vertically
upstanding leg member 114 integrally connected to the hori-
zontally disposed leg or base member 112 by means of a tran-
sitional region 116. A block or slab of adhesive 118 is fix-
edly secured to an undersurface or lower face portion of the
horizontally disposed leg or base member 112, and in turn, a
release sheet 120 is secured to an undersurface or lower
face portion of the adhesive slab 118 so as to prevent the
adhesive slab 118 from being inadvertently adhesively bonded
to any surface, other than that particular location or por-
tion of the roadway to which the temporary raised pavement
marker (TRPM) 110 is to be fixedly secured, prior to the ac-
tual fixation of the temporary raised pavement marker (TRPM)
110 upon a selected location or portion of the roadway. As
was the case with the temporary raised pavement marker
(TRPM) 10 of FIGURE 1 of the present drawings as well as
those of Speer et al., the upper end portion of the verti-
cally upstanding leg member 114 of the temporary raised
pavement marker (TRPM) 110 also comprises a pair of hori-
zontally disposed rib members 122,122 which define a space
or channel 124 therebetween for housing or accommodating a
suitable reflector strip, not shown. Alternatively, the en-
tire extrusion comprising the temporary raised pavement
marker (TRPM) 110 may be fabricated from a suitable plastic
material which is brightly colored, that is, it may be fab-
ricated from a suitable resin material which is white or
yellow.
The temporary raised pavement markers (TRPMs) 110
are normally placed upon the roadway surface during an ex-
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tended period of time that construction or other road work
is being performed upon the roadway surface, and therefore,
the temporary raised pavement markers (TRPMs) 110 are norm-
ally placed upon the roadway surface prior= to the completion
of the entire construction or other road work as well as the
application of the permanent traffic lane lines to the road-
way surface. Accordingly, in order to protect the reflector
strip, not shown, which is adapted to be disposed, housed,
or accommodated within the space or channel 124 defined be-
tween the pair of horizontally disposed rib members 122,122,
or alternatively, in order to protect the upper portion of
the vertically upstanding leg member 114, when such portion
of the temporary raised pavement marker (TRPM) 110 is to be
used as the visual warning to oncoming motorists, from road
paving materials, debris, and the like, a protective cover
126, fabricated from a suitable clear plastic material and
having a substantially inverted U-shaped configuration, is
disposed over the upper free edge portion of the temporary
raised pavement marker (TRPM) 110.
When the temporary raised pavement markers (TRPMs)
110 are to be subsequently used in conjunction with, for
example, their traffic lane delineation functions, the pro-
covers 126 are removed, and still further, when the
tective
need for the temporary raised pavement markers (TRPMs) 110
is no longer required in view of the completion of the con-
struction or other roadwork, the temporary raised pavement
markers (TRPMs) 110 themselves will obviously be removed
from the roadway surface, and the permanent raised pavement
markers (RPMs) will be applied to the roadway surface. Ex-
amples of permanent raised pavement markers (RPMs) are dis-
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closed within United States Patent, 5,515,807 which issued
to Speer et al. on May 14, 1996, United States Patent
5,392,728 which issued to Speer et al. on February 28, 1995,
United States Patent 5,327,850 which issued to Speer et al.
on July 12, 1994, and United States Patent 4,895,428 which
issued to Nelson et al. on January 23, 1990. Until now, the
process for mounting and securing both the temporary raised
pavement markers (TRPMs) and the permanent raised pavement
markers (RPMs) upon the roadway surfaces has been accomp-
lished manually whereby construction workmen or other per-
sonnel would have to manually deposit the temporary raised
pavement markers (TRPMs) onto the roadway surface as a re-
sult of, for example, removing the release sheet from the
undersurface portion of the adhesive slab or layer and
pressing the temporary raised pavement marker (TRPM) or
permanent raised pavement marker (RPM) onto the roadway sur-
face so as to cause the adhesive bonding of the temporary
raised pavement marker (TRPM) or the permanent raised pave-
ment marker (RPM) to the roadway surface. In view of the
fact that the construction workmen or other personnel are
physically present upon the particular roadway surface dur-
ing the performance of such temporary raised pavement marker
(TRPM) or permanent raised pavement marker. (RPM) application _
operations onto the roadway surface, the workmen or person-
nel are undesirably exposed to dangerous vehicular condi-
tions present upon the roadway. In addition, the temporary
raised pavement marker (TRPM) and permanent raised pavement
marker (RPM) application procedures are quite tedious, time-
consuming, and problematic.
More particularly, it is noted that in connection
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with one conventional technique for.currently fabricating
temporary raised pavement markers (TRPMs), the temporary
raised pavement markers (TRPMs) are initially manufactured
as elongated structures having the aforenoted substantially
L-shaped cross-sectional configuration, arid the adhesive ma-
terial and release liner components are then applied to the
undersurface portions of the relatively short, normally hor-
izontally disposed leg members thereof. Subsequently, the
elongated structures are cut at predetermined locations
thereof so as to provide finalized temporary raised pavement
markers (TRPMs) having predetermined width dimensions. As
can therefore be readily appreciated, however, as a result
of such cutting or severing operations, the adhesive materi-
al and release liner components, as disposed upon the final-
ized temporary raised pavement markers (TRPMs), will have
the same lateral extents, and therefore, the end portions of
the release liner do not project laterally beyond the end
portions of the adhesive material. Accordingly, the end por-
tions of the adhesive material are effectively uncovered and
exposed which presents problems in connection with the me-
chanical feeding of the temporary raised pavement markers
(TRPMs) within automated machinery, as well as in connection
with the packaging of the temporary raised pavement markers _
(TRPMs). Still further, it is to be noted and appreciated
that when the adhesive material is applied to or deposited
upon the undersurface portion of the relatively short leg of
the elongated temporary raised pavement marker (TRPM) struc-
ture, the adhesive is applied or deposited in a heated
state.
Subsequently, the adhesive material will cool, and
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as a result of the cooling process, the adhesive material
undergoes a predetermined amount of shrinkage or contrac-
tion. Such shrinkage or contraction effectively forms a bond
between the primary mass of the adhesive material and the
release liner which effectively defines a line of demarca-
tion or boundary which is known as a feather-edge bond. The
feather-edge bond is very flexible and tends to bend along
with the release liner. Accordingly, when it is attempted to
remove the release liner from the adhesive material, in pre-
paration for the application of each one of the temporary
raised pavement markers (TRPMs) to the pavement surface, the
feather-edge bond structure is placed in tension, and it has
been noted that the tensile strength characteristics of the
feather-edge bond structure are greater than the force lev-
els normally required to peel the release liner from the ad-
hesive material as well as the tensile or shear strength
characteristics of the release liner per se. It can there-
fore be appreciated further that when the release liner is
desired to be removed from its associated temporary raised
pavement marker (TRPM), not only is such an operation diffi-
cult to achieve, but it often happens that the release liner
and/or the adhesive material disposed upon the undersurface
portion of the temporary raised pavement marker (TRPM) is
damaged which can render the use of the particular temporary
raised pavement marker (TRPM) unsuitable. Similar problems
or operational difficulties are likewise characteristic of
the manufacture and subsequent use of the permanent raised
pavement markers (RPMs).
A need therefore exists in the art for a new and
improved collated assembly of such temporary raised pavement
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markers (TRPMs) and permanent raised pavement markers (RPMs)
which will enable the new and improved collated assembly of
temporary raised pavement markers (TRPMs) and permanent
raised pavement markers (RPMs) to be automatically applied
to roadway surfaces by means of a new and improved system
and method wherein the aforenoted operational drawbacks and
disadvantages, characteristic of conventional or PRIOR ART
temporary raised pavement markers (TRPMs) and permanent
raised pavement markers (RPMs), and the methods and tech-
niques for applying such conventional or PRIOR ART temporary
raised pavement markers (TRPMs) and permanent raised pave-
ment markers (RPMs) to roadway surfaces, are effectively ov-
ercome.
SUMMARY OF THE INVENTION
Accordingly, the present invention seeks to provide a
new and improved collated assembly of temporary raised
pavement markers (TRPMs) and permanent raised pavement
markers (RPMs), and a new and improved system and method
for automatically serially applying such collated temporary
raised pavement markers (TRPMs) and permanent raised
pavement markers (RPMs) to roadway surfaces.
Another aspect of the present invention is to provide
a new and improved collated assembly of temporary raised
pavement markers (TRPMs) and permanent raised pavement
markers (RPMs), and a new and improved system and method
for automatically serially applying such collated temporary
CA 02461496 2007-02-07
raised pavement. markers (TRPMs) and permanent raised pave-
ment markers (RPMs) to roadway surfaces, which effectively
overcome the various structural and operational drawbacks
and disadvantages characteristic of PRIOR ART temporary
raised pavement markers (TRPMs) and permanent raised pave-
ment markers (RPMs), as well as the methods and techniques
for applying such temporary raised pavement markers (TRPMs)
and permanent raised pavement markers (RPMs) to roadway sur-
faces.
An additional aspect of the present invention is
to provide a new and improved collated assembly of temporary
raised pavement markers (TRPMs) and permanent raised pave-
ment markers (RPMs) which will readily facilitate the sepa-
ration of each one of the temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs) from
its release liner so that the temporary raised pavement
markers (TRPMs) and permanent raised pavement markers (RPMs)
can be readily and easily applied to roadway surfaces.
A further aspect of the present invention is to
provide a new and improved collated assembly of temporary
raised pavement markers (TRPMs) and permanent raised pave- _
ment markers (RPMs) which will readily facilitate the sepa-
ration of each one of the temporary raised pavement markers _
(TRPMs) and permanent raised pavement markers (RPMs) from
its release liner so that the temporary raised pavement
markers (TRPMs) and permanent raised pavement markers (RPMs)
can be readily, easily, and automatically applied in a seri-
al manner to roadway surfaces by means of the new and im-
proved system and method of the present invention.
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A last aspect of the present invention is to pro-
vide a new and improved collated assembly of temporary rais-
ed pavement markers (TRPMs) and permanent raised pavement
markers (RPMs) which will readily facilitate the separation
of each one of the temporary raised pavement markers (TRPMs)
and permanent raised pavement markers (RPMs) from its re-
lease liner so that the temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs) can be
readily, easily, and automatically applied in a serial man-
ner to roadway surfaces by means of the new and improved
system and method of the present invention whereby operator
personnel are not exposed to the hazards and dangers inher-
ently characteristic of manual temporary raised pavement
marker (TRPM) and permanent raised pavement marker (RPM)
application techniques and methods.
The foregoing and other aspects are achieved in
accordance with the teachings and principles of the present
invention through the provision of a new and improved col= _
lated assembly of temporary raised pavement markers (TRPMs)
and permanent raised pavement markers (RPMs) wherein each _
one of the plurality of temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs) has the
undersurface portion of its adhesive material block mounted
upon a single elongated release liner or release sheet such
that the plurality of temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs) are
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longitudinally separated from each other by means of prede-
termined spaces. Subsequently, the plurality of temporary
raised pavement markers (TRPMs) and permanent raised pave-
ment markers (RPMs) are disposed in an overlapped or nested
mode or state, and in accordance with a unique and novel
feature characteristic of the present invention, the single
elongated release liner or release sheet is disposed in a
substantially fan-folded manner between each one of the
temporary raised pavement markers (TRPMs) and permanent
raised pavement markers (RPMs) such that, as considered in
the longitudinal direction of the release sheet or release
liner, a portion of the fan-folded release sheet or release
liner is disposed longitudinally inwardly from or forwardly
of the longitudinal rear edge portion of the adhesive mater-
ial block of the temporary raised pavement marker (TRPM) or
permanent raised pavement marker (RPM) as considered in the
direction of movement of the automatic apparatus for apply-
ing or depositing the temporary raised pavement markers
(TRPMs) and permanent raised pavement markers (RPMs) onto or
upon the roadway surface.
Accordingly, it can be appreciated further that
the aforenoted feather-edge bond boundary, defined upon each
temporary raised pavement marker (TRPM) or each permanent
raised pavement marker (RPM) between the release sheet or
release liner, and the adhesive material block, is disposed
at a longitudinal position which is located longitudinally
inwardly from or forwardly of the longitudinal rear edge
portion of the adhesive material block of the temporary
raised pavement marker (TRPM) or permanent raised pavement
marker (RPM). Consequently, when the particular temporary
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raised pavement marker (TRPM) or permanent raised pavement
marker (RPM) is to be applied to or deposited upon the road-
way surface, the fan-folded portion of the release sheet or
release liner, as disposed beneath the temporary raised
pavement marker (TRPM) or permanent raised pavement marker
(RPM), will now be unfolded whereby the aforenoted feather-
edge bond boundary, defined upon the temporary raised pave-
ment marker (TRPM) or permanent raised pavement marker (RPM)
between the release sheet or release liner, and the adhesive
material block, will effectively be re-combined with and in-
tegrally incorporated within the primary adhesive material
block. Due to the greater affinity characteristics of the
feather-edge bond with respect to the adhesive material
block, as opposed to the affinity characteristics of the
feather-edge bond with respect to the release sheet or re-
lease liner, the existence of the feather-edge bond has been
effectively eliminated along with the operational difficult-
ies of separating or peeling the release liner or release
sheet from the adhesive material block. Thus, the temporary
raised pavement markers (TRPMs) or permanent raised pavement
markers (RPMs) can be readily and easily serially separated
from the single release liner or release sheet and accord-
ingly applied to or deposited upon the roadway surface. _
BRIEF DESCRIPTION OF THE DRAWINGS
Various other objects, features, and attendant ad-
vantages of the present invention will be more fully appre-
ciated from the following detailed description when consid-
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ered in connection with the accompanying drawings in which
like reference characters designate like or corresponding
parts throughout the several views, and wherein:
FIGURE 1 is a perspective view of a first PRIOR
ART temporary raised pavement marker (TRPM);
FIGURE 2 is a perspective view of a second PRIOR
ART temporary raised pavement marker (TRPM);
FIGURE 3=is a perspective view of a plurality of
temporary raised pavement markers (TRPMs) showing the same
lq being arranged within their nested or collated state or ar-
ray in accordance with the unique and novel teachings and
principles of the present invention;
FIGURE 4 is an enlarged view showing the details
of how the release liner or release sheet is fan-folded be-
tween successive ones of the nested or collated individual
temporary raised pavement markers (TRPMs) and how the re-
lease liner or release sheet is routed around the stripper
plate component of the temporary raised pavement marker
(TRPM) dispensing system in order to effectively separate
individual temporary raised pavement markers (TRPMs) from
the plurality of nested or collated temporary raised pave-
ment markers (TRPMs) in preparation for the application or
deposition of the temporary raised pavement markers (TRPMs)
onto the pavement surface;
FIGURE 5 is a side elevational view showing the
various structural components comprising the overall system
CA 02461496 2004-03-19
utilized for conveying the plurality of temporary raised
pavement markers (TRPMs) in their nested or collated array,
for separating individual temporary raised pavement markers
(TRPMs) from the plurality of nested or collated array of
temporary raised pavement markers (TRPMs), and for dispens-
ing and applying the separated individual temporary raised
pavement markers (TRPMs) onto the pavement surface;
FIGURE 6 is an enlarged detailed view of the in-
dexable drive mechanism, of the overall system as shown in
FIGURE 5, for indexably feeding the nested or collated array
of temporary raised pavement markers (TRPMs) in such a man-
ner that the leading one of the temporary raised pavement
markers (TRPMs) can be separated from the nested or collated
array of temporary raised pavement markers (TRPMs) and
therefore be applied to or deposited upon. the pavement sur-
face;
FIGURE 7 is a side elevational view showing an in-
dividual leading temporary raised pavement marker (TRPM), as
separated from the nested or collated array of temporary
raised pavement markers (TRPMs), wherein the individual sep-
arated temporary raised pavement marker (TRPM) is disposed _
in a prone position upon the pavement surface in preparation
for movement to its erected or upright position so as to be
fixed upon the pavement surface by an application wheel of
the temporary raised pavement marker (TRPM) application sys-
tem;
FIGURE 8 is a side perspective view of a plurality
of permanent half-track raised pavement markers (RPMs) show-
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CA 02461496 2004-03-19
ing the same being arranged within their collated state or
array upon their release sheet or release liner in accord-
ance with the unique and novel teachings and principles of
the present invention;
FIGXTRE 9 is a top plan view of a plurality of the
permanent half-track raised pavement markers (RPMs), such as
those disclosed within FIGURE 8, showing the predetermined
spaced disposition of the permanent half-track raised pave-
ment markers (RPMs) with respect to each other prior to the
permanent half-track raised pavement markers (RPMs) actually
being adhesively bonded upon the release liner or release
sheet and prior to the permanent half-track raised pavement
markers (RPMs) and the release liner or release sheet being
fan-folded together into the collated array;
FIGURE 10 is a top plan view, similar to that of
FIGURE 9, showing, however, two different embodiments of
permanent full-track raised pavement markers (RPMs), having
substantially trapezoidal cross-sectional configurations,
that can be utilized in accordance with the principles and
teachings of the present invention, and more particularly,
the predetermined spaced disposition of the permanent full- _
track raised pavement markers (RPMs) with respect to each
other when the permanent full-track raised pavement markers
(RPMs) are adhesively bonded upon the release liner or re-
lease sheet;
FIGURE 11 is a top plan view of a third embodiment
of a permanent full-track raised pavement marker (RPM) that
can be utilized in accordance with the principles and teach-
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ings of the present invention, wherein the permanent full-
track raised pavement marker (RPM) has a substantially el-
liptical, domed configuration with light reflective elements
fixedly embedded upon diametrically opposite sides of the
permanent full-track raised pavement marker (RPM);
FIGURE 12 is a top plan view of a fourth embodi-
ment of a permanent full-track raised pavement marker
(RPM)that can be utilized in accordance with the principles
and teachings of the present invention, wherein the perman-
ent full-track raised pavement marker (RPM) has a substan-
tially circular, domed configuration with light reflective
elements fixedly embedded upon diametrically opposite sides
of the permanent full-track raised pavement marker (RPM);
and
FIGURE 13 is a top plan view of a fifth embodiment
of a permanent full-track raised pavement marker (RPM) that
can be utilized in accordance with the principles and teach-
ings of the present invention, wherein the permanent full-
track raised pavement marker (RPM) has a substantially el-
liptical, domed configuration, however, this permanent full-
track raised pavement marker (RPM) is white in color such _
that no light reflective elements need be incorporated with-
in this permanent full-track raised pavement marker (RPM). _
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, and more particular-
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ly to FIGURES 3 and 4 thereof, the new and improved collated
array of temporary raised pavement markers (TRPMs) will be
disclosed first, and it is seen that such an array is gene-
rally indicated by the reference character 210. As can be
readily appreciated, the new and improved collated array of
temporary raised pavement markers (TRPMs) 210 is seen to
comprise a plurality of temporary raised pavement markers
(TRPMs) 211 each of which is substantially similar to the
temporary raised pavement marker (TRPM) 11.0 as illustrated
within FIGURE 2 in that each temporary raised pavement mark-
er (TRPM) 211 has a substantially L-shaped configuration and
comprises a relatively short, normally horizontally oriented
leg member 212, and a relatively long, normally vertically
oriented leg member 214.
A transitional corner region 216 integrally inter-
connects the leg members 212,214 of each temporary raised
pavement marker (TRPM) 211 together, and a protective cover
226, having a substantially inverted U-shaped configuration,
is disposed over the upper free edge portion of the normally
vertically oriented leg member 214 of each temporary raised
pavement marker (TRPM) 211. Each temporary raised pavement
marker (TRPM) 211 also has an adhesive pad or block member _
218 fixedly secured to the undersurface portion of the rela-
tively short, normally horizontally oriented leg member 212,
and in accordance with a first unique and novel feature
characteristic of the collated array of temporary raised
pavement markers (TRPMs) 210 of the present invention, the
adhesive pads or block members 218 of the plurality of temp-
orary raised pavement markers (TRPMs) 211 are all removably
disposed upon a single or common re-lease sheet or release
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liner 220. In accordance with another unique and novel fea-
ture characteristic of the collated array of temporary rais-
ed pavement markers (TRPMs) 210 of the present invention, it
is further appreciated, from the right side portion of FIG-
URE 3, that the plurality of temporary raised pavement mark-
ers (TRPMs) 211 are initially mounted upon the single or
common release sheet or release liner 220, at predetermined
locations spaced along the longitudinal extent of the re-
lease sheet or release liner 220 and in a particular manner,
such that predetermined equal distances are defined between
successive ones of the plurality of temporary raised pave-
ment markers (TRPMs) 211. Subsequently, as can be further
appreciated from the left side portion of FIGURE 3, as well
as from FIGURES 4-7, the plurality of temporary raised pave-
ment markers (TRPMs) 211 are adapted to be disposed in the
nested or collated array 210 with respect to each other.
More particularly, it is seen that the relatively short leg
members 212 of successive ones of the plurality of temporary
raised pavement markers (TRPMs) 211 are disposed atop or
partially overlap each other such that the transitional
corner regions 216 of the plurality of temporary raised
pavement markers (TRPMs) 211 effectively define a linear lo-
cus LL which is oriented at a predetermined inclination or
dispensing angle A with respect to the roadway surface 230
as may best be appreciated from FIGURES 5 and 7.
With reference continuing to be made to FIGURE 3,
additional unique and novel features characteristic of the
collated array of temporary raised pavement markers (TRPMs)
210 of the present invention will also be appreciated. More
particularly, it is seen that an additional unique and novel
CA 02461496 2004-03-19
s a
feature characteristic of the collated array of temporary
raised pavement markers (TRPMs) 210 of the present invention
resides in the fact that the lateral width W of the release
sheet or release liner 220 is greater than the lateral width
of each one of the temporary raised pavement markers (TRPMs)
211, and most importantly, the lateral width W of the re-
lease sheet or release liner 220 is greater than the lateral
width of each relatively short leg member 212 and the asso-
ciated underlying adhesive pad or block member 218 of each
one of the temporary raised pavement markers (TRPMs) 211.
The reason for this is that when the plurality of temporary
raised pavement markers (TRPMs) 211 are disposed within the
collated array of temporary raised pavement markers (TRPMs)
210 in preparation for being serially dispensed and applied
to the roadway surface 230, as disclosed, for example, with-
in FIGURE 5, the collated array of temporary raised pavement
markers (TRPMs) 210 are adapted to be disposed within an in-
clined conveyor box or container, not shown for clarity pur-
poses, through which the plurality of temporary raised pave-
ment markers (TRPMs) 211 are effectively conveyed as will
become more apparent hereinafter.
Accordingly, the lateral side edge portions of the _
release sheet or release liner 220 will effectively be fold-
ed upwardly alongside the lateral side edge portions of each
relatively short leg member 212 of each temporary raised
pavement marker (TRPM) 211 so as to effectively cover the
lateral side edge portions of each adhesive pad or block
member 218 whereby such lateral side edge portions of the
adhesive pads or block members 218 cannot adhere or become
stuck to the interior side wall portions of the conveyor box
21
CA 02461496 2004-03-19
or container, not shown, within which the plurality of temp-
orary raised pavement markers (TRPMs) 211 are disposed. The
aforenoted conveyor box or container, not shown, is of
course open at both the lower and upper regions thereof so
as to permit the plurality of temporary raised pavement
markers (TRPMs) 211 to be respectively dispensed onto the
roadway surface 230 as well as to permit a fresh supply of
temporary raised pavement markers (TRPMs) 211. to be inserted
into the conveyor box or container, not shown, for ultimate
use in dispensing the temporary raised pavement markers
(TRPMs) 211 onto the roadway surface 230.
Still yet further, with particular reference being
additionally made to FIGURE 4, another unique feature char-
acteristic of the collated array of temporary raised pave-
ment markers (TRPMs) 210 is that when the temporary raised
pavement markers (TRPMs) 211 are disposed within the nested
or collated array of temporary raised pavement markers
(TRPMs) 210, as seen within the left side portion of FIGURE
3 as well as within FIGURES 4-7, the release sheet or re-
lease liner 220 is disposed within a fan-folded array be-
tween each successive pair of the nested or partially over-
lapped relatively short leg members 212 of the plurality of
temporary raised pavement markers (TRPMs) 211. It is seen,
for example, that when the release sheet or release liner
220 is formed into its fan-folded array or state, the re-
lease sheet or release liner 220 extends downstream from a
trailing, upstream, or supply end portion 234 of the release
sheet or release liner 220, as may best be appreciated from
FIGURES 3 and 5, and as such, the release sheet or release
liner 220 is disposed beneath the adhesive pad or block mem-
22
CA 02461496 2004-03-19 -
ber 218 of each one of the temporary raised pavement markers
(TRPMs) 211 whereby the temporary raised pavement markers
(TRPMs) 211 are initially disposed upon the release sheet or
release liner 220 at predetermined longitudinally spaced lo-
cations thereof. Once the plurality of temporary raised
pavement markers (TRPMs) 211 are secured upon the common
release liner or release sheet 220, the temporary raised
pavement markers (TRPMs) 211 are then adapted to be disposed
within their nested or collated array 210 with respect to
each other.
More particularly, it is noted that, as a result
of the disposition of the temporary raised pavement markers
(TRPMs) 211 within the collated or nested array of temporary
raised pavement markers (TRPMs) 210, as may best be appreci-
ated from FIGURE 4, the release sheet or release liner 220
extends rearwardly beneath each one of the adhesive pads or
block members 218 of each temporary raised pavement marker
(TRPM) 211 and is folded so as to form a rearwardly disposed
or oriented loop portion 236 beneath a rear or trailing edge
portion 238 of each adhesive pad or block member 218 as dis-
closed within the encircled area A of FIGURE 4. The release
sheet or release liner 220 is then routed across the upper _
surface portion of each one of the relatively short leg mem-
bers 212 of the plurality of temporary raised pavement mark-
ers (TRPMs) 211 and is subsequently folded and routed around
the forward or leading edge portion 240 of each one of the
relatively short leg members 212 of the plurality of tempo-
rary raised pavement markers (TRPMs) 211 so as to form a
forwardly disposed or oriented loop portion 242. Ultimately,
the release liner or release sheet 220 will extend rearward-
23
CA 02461496 2004-03-19
ly beneath the adhesive pad or block member 218 of the low-
ermost one of the temporary raised pavement markers (TRPMs)
211 of the collated or nested array of temporary raised
pavement markers (TRPMs) 210 in preparation for the indivi-
dual dispensing of the temporary raised pavement markers
(TRPMs) 211 from the collated or nested array of temporary
raised pavement markers (TRPMs) 210 and the application of
the dispensed temporary raised pavement markers (TRPMs) 211
onto the roadway surface 230.
As can be further appreciated from FIGURSS 4,5,
and 7, in order to individually and serially dispense or
separate the plurality of temporary raised. pavement markers
(TRPMs) 211 from the collated array of temporary raised
pavement markers (TRPMs) 210, and in order to subsequently
apply the individually separated temporary raised pavement
markers (TRPMs) 211 onto the roadway surface 230, a fixed
stripper plate 244 is disposed at the lower end portion of
the inclined collated array of the temporary raised pavement
markers (TRPMs) 210, and it is seen that a leading end por-
tion 246 of the release sheet or release liner 220 is routed
around a trailing edge portion 248 of the stripper plate 244
so as to be drivingly connected to a release sheet or re- _
lease liner take-up mechanism which is generally indicated
by the reference character 250 as best appreciated from FIG- _
URES 5 and 6. More particularly, the release sheet.or re-
lease liner take-up mechanism 250 is seen to comprise an in-
dexable roller 252, and a nip roller 254 is operatively as-
sociated with and biased into contact with the indexable
roller 252 so as to define a nip therewith. The leading end
portion 246 of the release sheet or release liner 220 is
24
CA 02461496 2004-03-19
seen to be routed around the indexable roller 252 so as to
initially pass beneath the indexable roller 252 and then ov-
er the upper side portion of the indexable roller 252 so as
to pass through the nip defined between the indexable roller
252 and the nip roller 254. After passing through the nip
defined between the indexable roller 252 and the nip roller
254, the leading end portion 246 of the release sheet or re-
lease liner 220 is passed over the nip roller 254 and is op-
eratively fixed to a winder spool or take-up spool 256.
It is seen further that the indexable roller 252
is operatively connected to a drive motor 258 so as to be
driven thereby, and the drive motor 258 is operatively con-
nected to a program logic controller (PLC) 260 so as to be
controlled thereby in a predetermined indexable manner. More
particularly, and as will become more apparent hereinafter,
when the program logic controller (PLC) 260 incrementally
activates the indexable drive motor 258, t:he indexable drive
motor 258 will cause the a predetermined length of the re-
lease sheet or release liner 220 to be longitudinally ad-
vanced, at a predetermined time, in order to successively
dispense the leading or lowermost one of the temporary rais-
ed pavement markers (TRPMs) 211 from the nested or collated
array of temporary raised pavement markers (TRPMs) 210 such
that the temporary raised pavement markers (TRPMs) 211 can
be applied onto the roadway surface 230 with predetermined
distances defined between successive temporary raised pave-
ment markers (TRPMs) 211. The program logic controller (PLC)
260 is also operatively connected to the winder spool or
take-up spool 256 so as to activate the same, after the in-
dexable roller 252 has been incrementally rotated, so as to
CA 02461496 2004-03-19
effectively take-up or wind the slackened amount of release
sheet or release liner 220 thereon. The take-up spool or
winder spool 256 may have a suitable variable slip clutch
mechanism, not shown, operatively associated therewith such
that an excessive amount of wind-up torque is not impressed
upon either the take-up spool or winder spool 256, the re-
lease sheet or release liner 220, or the nip roller 254.
It is noted further that a suitable mechanism, al-
so not shown, may be employed to effectively bias or pre-
load the nip roller 254 into contact with the indexable
roller 252 such that a predetermined amount of pressure is
effectively maintained between the indexable roller 252 and
the nip roller 254 in order to drivably advance the release
sheet or release liner 220 through the nip, defined between
the indexable roller 252 and the nip roller 254, when desir-
ed. It is additionally noted that the program logic control-
ler (PLC) 260 directly controls the indexable roller 252, as
opposed to, for example, indexably controlling the take-up
spool or winder spool 256, in order to indexably advance the
release sheet or release liner 220, in view of the fact that
as those portions of the release sheet or release liner 220,
which have already been stripped from the individual tempo- _
rary raised pavement markers (TRPMs) 211, are accumulated
upon the take-up spool or winder spool 256, the diameter of
the release sheet or release liner 220, as taken-up, wound,
and accumulated upon the take-up spool or winder spool 256,
is progressively increased. Therefore, if the program logic
controller (PLC) 260 directly indexably advanced the take-up
spool or winder spool 256 through means of a predetermined
angular extent, different linear amounts of the release lin-
26
CA 02461496 2004-03-19
er or release sheet 220 would effectively be advanced there-
by advancing the individual temporary raised pavement mark-
ers (TRPMs) 211 through non-uniform distances. Accordingly,
with reference still being made to FIGURES 4-7, when the
program logic controller (PLC) 260 transmits a suitable con-
trol signal to the indexable roller drive motor 258 for in-
dexably driving the indexable roller 252, the indexable
roller 252 and the nip roller 254 will cooperate together so
as to advance the leading end portion 246 of the release
sheet or release liner 220 a predetermined amount in order
to separate the leading or lowermost one of the temporary
raised pavement markers (TRPMs) 211 from the nested or col-
lated array of temporary raised pavement markers (TRPMs) 210
in order to effectively dispense the leading or lowermost
one of the temporary raised pavement markers (TRPMs) 211 on-
to the roadway surface 230.
More particularly, as best seen in FIGURES 4 and
7, a first, leading, or lowermost one of the temporary rais-
ed pavement markers (TRPMs) 211 of the originally nested or
collated array of temporary raised pavement markers (TRPMs)
210 is illustrated at 211-1, a second one of the temporary
raised pavement markers (TRPMs) 211 of the originally nested _
or collated array of temporary raised pavement markers
(TRPMs) 210 is illustrated at 211-2, and a third one of the
temporary raised pavement markers (TRPMs) 211 of the origin-
ally nested or collated array of temporary raised pavement
markers (TRPMs) 210 is illustrated at 211-3 for explanatory
purposes. When, for example, a leading one of the temporary
raised pavement marker (TRPM) 211 is to be initially sepa-
rated from the temporary raised pavement markers (TRPMs) 211
27
CA 02461496 2004-03-19
disposed within the collated or nested array of temporary
raised pavement markers (TRPMs) 210 so as to be moved, for
example, from the position occupied by means of the illus-
trated temporary raised pavement marker (TRPM) 211-3 to the
position occupied by means of the illustrated temporary
raised pavement marker (TRPM) 211-2, the release sheet or
release liner 220 will be advanced in the forward direction
I by means of the indexable roller 252, cooperating with the
nip roller 254, as driven by means of the motor drive 258 in
accordance with an activation control signal issued by means
of the program logic controller (PLC) 260.
Accordingly, the leading one of the temporary rais-
ed pavement markers (TRPMs) 211 will effectively be separat-..
ed from the nested or collated array of the temporary raised
pavement markers (TRPM) 210 and will be disposed at the po-
sition occupied by means of the temporary raised pavement
marker (TRPM) 211-2 as illustrated within FIGURES 4 and 7.
It is also to be noted and appreciated that, as a result of
the movement of the leading one of the tenlporary raised
pavement markers (TRPMs) 211 to the illustrated separated
position occupied by means of the temporary raised pavement
marker (TRPM) 211-2, the folded portion of the release sheet
or release liner 220, which previously formed the rearwardly
disposed or oriented loop portion 236 disposed beneath the
adhesive pad or block member 218 of the second one of the
temporary raised pavement markers (TRPMs) 211, has now been
unfolded and effectively eliminated as is illustrated within
the encircled region B of FIGURE 4. This procedure is criti-
cally important for readily facilitating the peeling or sep-
aration of the release sheet or release liner 220 from each
28
CA 02461496 2004-03-19
one of the temporary raised pavement markers (TRPMs) 211
such that each one of the temporary raised pavement markers
(TRPMs) 211 can in fact be dispensed and disposed upon the
pavement or roadway surface 230 as is illustrated by means
of the temporary raised pavement marker (TRPM) 211-1. It is
to be noted, with particular reference again being made to
the encircled region A of FIGURE 4, that, in accordance with
the unique and novel techniques of forming the collated or
nested array of the temporary raised pavement markers
(TRPMs) 210 of the present invention, the disposition or
location of each rearwardly disposed or oriented loop por-
tion 236 of the release sheet or release liner 220, as dis-
posed or located beneath the rear or trailing edge.portion
238 of each adhesive pad or block member 218, is such that
each rearwardly disposed or oriented loop portion 236 is ac-
tually set inwardly, as considered in the forward direction
I, with respect to the rear edge portions 238 of each adhes-
ive pad or block member 218.
It will also be recalled, as has been noted here-
inbefore, that after the adhesive material, which was origi-
nally or initially applied or deposited in a heated state
onto the undersurface portion of the relatively short leg
member of the elongated temporary raised pavement marker
(TRPM) structure, from which the individual temporary raised
pavement markers (TRPMs) 211 were subsequently cut and form-
ed, the adhesive material subsequently cools, and as a re-
sult of such cooling process, the adhesive material under-
goes a predetermined amount of contraction. or shrinkage.
Such contraction or shrinkage of the adhesive material ef-
fectively forms a bond structure between the primary mass of
29
CA 02461496 2004-03-19
the adhesive material and the release liner which includes
and partially defines the aforenoted feather-edge bond boun-
dary or line of demarcation. It can therefore be additional-
ly appreciated from the structural arrangement of the col- _
lated or nested array of temporary raised pavement markers
(TRPMs) 210, as disclosed within FIGURE 4 and comprising the
plurality of temporary raised pavement markers (TRPMs) 211,
the plurality of adhesive pads or block members 218, and the
fan-folded release sheet or release liner 220, that the
aforenoted feather-edge bond boundaries, characteristic of
the collated or nested array of temporary raised pavement
markers (TRPMs) 210 of the present invention, are formed at
the junction of each rearwardly disposed or oriented loop
portion 236 of the release liner or release sheet 220 and
rear edge regions of each adhesive pad or block member 218.
Consequently, as can be appreciated still further,
and unlike or contrary to conventional or PRIOR ART tempo-
rary raised pavement markers (TRPMs), as disclosed, for ex-
ample, within FIGURE 2, wherein the locations of such fea-
ther-edge bond boundaries are rearward or external of the
rear edge portion of each individual adhesive pad or block
member 118, the locations of the feather-edge bond boundar- _
ies of the present invention, as defined between the rear-
wardly disposed or oriented loop portions 236 of the release
liner or release sheet 220 and the rear edge regions of the
adhesive pads or block members 218, are effectively posi-
tioned forwardly of the rear edge portions 238 of the adhes-
ive pads or block members 218 so as to effectively be dis-
posed beneath each adhesive pad or block member 218. In this
manner, when the individual portions of the release sheet or
CA 02461496 2004-03-19
release liner 220, which form the individual rearwardly dis-
posed or oriented loop portions 236 as defined between suc-
cessively collated or nested temporary raised pavement mark-
ers (TRPMs) 211, are effectively unfolded as a result of,
for example, a particular one of the temporary raised pave-
ment markers (TRPMs) 211 being moved from the position de-
picted by temporary raised pavement marker (TRPM) 211-3 to
the position depicted by temporary raised pavement marker
(TRPM) 211-2, as seen in FIGURES 4 and 7, then the feather-
edge bond boundary, defined between each section of the re-
lease sheet or release liner 220 and the adhesive pad or
block member 218 of an associated one of the temporary rais-
ed pavement markers (TRPMs) 211, is effectively recombined
with the primary mass comprising the adhesive pad or block
member 218 of the particular one of the temporary raised
pavement markers (TRPMs) 211.
In view of the fact that the chemical and struc-
tural affinity of the feather-edge bond structure, defined
at the feather-edge bond boundary, is substantially greater
with respect to the primary mass of adhesive material com-
prising the adhesive pad or block member 218, as opposed to
the affinity of the feather-edge bond structure with respect _
to release sheet or release liner 220, then the recombining
of such feather-edge bond structure with the primary mass of
adhesive material comprising the adhesive pad or block mem-
ber 218 effectively permits the feather-edge bond structure
to be completely assimilated within the primary mass of ad-
hesive material comprising the adhesive pad or block member
218. Such assimilation, in turn, effectively eliminates the
adverse structural characteristics of the feather-edge bond
31
CA 02461496 2004-03-19
structure, that is, the flimsy but flexible nature of the
same, characterized by relatively high tensile strength
properties, which otherwise prevents the readily easy sepa-
ration, peeling, or stripping of the release sheet or re-
lease liner 220 from the particular one of the adhesive pads
or block members 218 disposed upon a particular one of the
temporary raised pavement markers (TRPMs) 211 to be deposit-
ed or applied onto the roadway surface 230. Accordingly, as
a result of such effective assimilation of the feather-edge
bond structure into or with the primary mass of adhesive ma-
terial comprising the adhesive pad or block member 218, this
processing permits the release sheet or release liner 220 to
be easily peeled, stripped, and separated from the adhesive
pad or block member 218 of each one of the temporary raised
pavement markers (TRPMs) 211 such that the individual tempo-
rary raised pavement markers (TRPMs) 211 can in fact be ap-
plied onto the roadway surface 230.
In connection with the actual deposition or appli-
cation of the individual temporary raised pavement markers
(TRPMs) 211 onto the roadway surface 230, and with particu-
lar reference being made to FIGURES 4,5 and 7, it is to be
appreciated that as the release sheet or release liner 220 _
is being peeled or stripped from, for example, the second
one of the temporary raised pavement markers (TRPMs) 211-2
and routed around the rear edge portion 248 of the stripper
plate 244, the second temporary raised pavement marker.
(TRPM) 211-2 will tend to rotate or pivot around the rear
edge portion 248 of the stripper plate 244 such that the
second temporary raised pavement marker (TRPM) 211-2 will
eventually be disposed upon the roadway surface 230 at the
32
CA 02461496 2007-02-07
position depicted by means of the first temporary raised
pavement marker (TRPMs) 211-1 within FIGURE 7 wherein, for
example, the normally upright or vertically oriented leg
member 214 of the temporary raised pavement marker (TRPM)
211-1 is disposed or oriented horizontally, while the norm-
ally horizontally oriented leg member 212 of the temporary
raised pavement marker (TRPM) 211-1 is disposed or oriented
vertically. It is additionally noted that in accordance with
the system for applying the temporary raised pavement mark-
ers (TRPMs) 211 onto the roadway surface 230, the various
structural components comprising the temporary raised pave-
ment marker (TRPM) deposition or application system of the
present invention are adapted to be operationally mounted
upon a portable, wheeled vehicle structure which may be ef-
fectively towed by means of a suitable roadway service truck
or vehicle of the type disclosed within Canadian Patent
File No. 2,440,929, filed September 12, 2003 which is
entitled TEMPORARY RAISED PAVEMENT MARKER (TRPM) APPLICATOR
MACHINE FOR AUTOMATICALLY APPLYING PAVEMENT MARKERS TO ROAD
SURFACES.
Accordingly, as disclosed within FIGURES 5 and 7, _
an application wheel 262 of the towed vehicle, not shown, is
disposed rearwardly of the lower end portion of the conveyor
box or container, not shown, within which the collated or
nested array of temporary raised pavement markers (TRPMs)
210 is disposed. In this manner, immediately after the first
one of the temporary raised pavement markers (TRPMs) 211 is
disposed at the position depicted by means of the temporary
raised pavement marker (TRPM) 211-1 as disclosed within FIG-
33
CA 02461496 2004-03-19
URE 7, the application wheel 262 rolls over the first tempo-
rary raised pavement marker (TRPM) 211-1 and causes the ver-
tically upright short leg member 212 of the first temporary
raised pavement marker (TRPM) 211-1 to be effectively pivot-
ed around the axis defined by means of the transitional
corner region 216 of the first temporary raised pavement
marker (TRPM) 211-1 such that the adhesive pad or block mem-
ber 218 of the first temporary raised pavement marker (TRPM)
211-1 is now pressed into contact with the roadway surface
230 in order to adhesively bond the first temporary raised
pavement marker (TRPM) 211-1 onto the roadway surface 230.
It is noted that during the application of the first tempo-
rary raised pavement marker (TRPM) 211-1 onto the roadway
surface 230, at no time does the application wheel 262 con-
tact the exposed adhesive pad or block member 218 disposed
upon the temporary raised pavement marker (TRPM) 211-1.
Subsequently, as the application wheel 230 passes
over and beyond the first temporary raised pavement marker
(TRPM) 211-1, which is now fixedly bonded to the roadway
surface 230, the resiliency of the temporary raised pavement
marker (TRPM) 211-1, which is inherently characteristic of
the thermoplastic material from which all of the temporary _
raised pavement markers (TRPMs) 211 are fabricated, permits
the vertically oriented large leg member 214 of the first
temporary raised pavement marker (TRPM) 211-1 to attain and
regain its normally upright, vertical orientation. It can of
course be further appreciated that the plurality of tempo-
rary raised pavement markers (TRPMs) 211 are able to be ac-
cordingly successively or serially dispensed and deposited
or applied onto the roadway surface 230 as a result of the
34
CA 02461496 2004-03-19
indexable roller 252 being operationally indexed by means of
its drive motor 258 which, in turn, is under the control of
the program logic controller (PLC) 260 which issues energi-
zation signals at predeterminedly timed intervals such that
the plurality of temporary raised pavement markers (TRPMs)
211 are applied to the roadway surface 230 at predetermined-
ly spaced locations along the roadway surface 230. It is
noted in conjunction with the dispensing and application of
the plurality of temporary raised pavement markers (TRPMs)
211 onto the roadway surface 230 that a suitable sensor,
such as, for example, a photodetector array 264 may be dis-
posed within the vicinity of the stripper plate 248, as il-
lustrated, for example, within FIGURE 7. Accordingly, when-
ever the photodetector array 264 detects the presence of a
successive one of the temporary raised pavement markers
(TRPMs) 211, a signal is transmitted to the program logic
controller (PLC) 260 so as to initiate an index motor drive
movement at a predetermined time in order to dispense and
apply another temporary raised pavement marker (TRPM) 211
onto the roadway surface 230.
It is lastly noted that when a particular collated
or nested array of temporary raised pavement markers (TRPMs)
210 have been deposited and applied onto the roadway surface
230, and the supply of temporary raised pavement markers
(TRPMs) 211 disposed upon a particular section or length of
release sheet or release liner 220 has been depleted or ex-
hausted, a new or fresh supply of temporary raised pavement
markers (TRPMs) 211 can be deposited and applied to the
roadway surface 230 simply by means of effectively connect-
ing a leading end portion 246 of the new or fresh release
CA 02461496 2004-03-19
sheet or release liner 220, having a new or fresh supply of
temporary raised pavement markers (TRPMs) 211 disposed
thereon, to the trailing end portion 234 of the exhausted or
depleted release sheet or release liner 220. The connection
means for the release sheets or release liners 220 may vary,
such as, for example, a suitable adhesive may be applied to
the leader and trailer sections 246,234, or alternatively,
other mechanical means may be employed. Iri either case, con-
tinuous automatic operation of the temporary raised pavement
marker (TRPM) application system can be achieved. It is
likewise noted that while the various structural and opera-
tional components of the temporary raised pavement marker
(TRPM) application system, as disclosed, for example, within
FIGURE 5, are substantially aligned within a single vertical
plane, that is, the winder or take-up spool 256 is disposed
forwardly of the inclined array of temporary raised pavement
markers (TRPMs) 210, and in turn, the array of temporary
raised pavement markers (TRPMs) 210 is disposed forwardly of
the applicator wheel 262 of the wheeled vehicle, such an ar-
rangement is not necessarily mandatory.
Alternatively, for example, the stripper plate 244
may be disposed at a predetermined angle with respect to, _
for example, the plane within which the applicator wheel 262
is disposed whereby the longitudinal extent of the applicat-
or system may be effectively shortened while the lateral ex-
tent of the applicator system may be accordingly extended.
In this manner, different spatial requirements may be accom-
modated. Still further, while the applicator system of the
present invention has been disclosed as being capable of de-
positing or applying a single line of temporary raised pave-
36
CA 02461496 2007-02-07
ment markers (TRPMs) 211 onto the roadway surface, similar,
side-by-side systems may be effectively arranged so as to be
capable of simultaneously depositing or applying a dual row
of temporary raised pavement markers (TRPMs) 211 as has also
been disclosed within the aforenoted Canadian Patent File
No. 2,440,929, filed September 12, 2003 which is entitled
TEMPORARY RAISED PAVEMENT MARKER (TRPM) APPLICATOR MACHINE
FOR AUTOMATICALLY APPLYING PAVEMENT MARKERS TO ROAD
SURFACES.
It is to be appreciated still further that while
the aforenoted new and improved road marker collated assem-
bly, and the system and method for applying road markers to
roadway surfaces, have been disclosed, in accordance with
the principles and teachings of the present invention, as
being utilized in conjunction with the temporary raised
pavement markers (TRPMs), the new and improved road marker
collated assembly, and the system and method for applying
road markers to roadway surfaces, are equally applicable, in
accordance with the principles and teachings of the present
invention, for use in conjunction with permanent raised
pavement markers (RPMs). Accordingly, as can be appreciated
from FIGURES 8 and 9, a new and improved collated array of _
permanent raised pavement markers (RPMs) is disclosed and is
generally indicated by the reference character 310, it being
noted that as disclosed within FIGURE 8, the permanent rais-
ed pavement markers (RPMs) and the associated release sheet
or release liner are disposed within their fan-folded col-
lated array, while as disclosed within FIGURE 9, the perman-
ent raised pavement markers (RPMs) and the associated re-
lease sheet or release liner are shown prior to the actual
37
CA 02461496 2004-03-19
adhesive bonding of the permanent raised pavement markers
(RPMs) onto the release sheet or release liner and the sub-
sequent fan-folding of the components into the aforenoted
fan-folded collated array.
More particularly, as can be readily appreciated
from FIGURES 8 and 9, the new and improved collated array of
permanent raised pavement markers (RPMs) 310 is seen to com-
prise a plurality of permanent raised pavement markers
(RPMs) 312 wherein each one of the permanent raised pavement
markers (RPMs) 312 is seen to be similar to the permanent
raised pavement markers (RPMs) as illustrated within the
aforenoted United States Patents 5,515,807, 5,392,728, and
5,327,850 which issued to Speer et al. Each one of these
permanent raised pavement markers (RPMs) 312 has a substan-
tially rectangular configuration and is known in the indus-
try as a permanent half-track raised pavement marker in that
the external dimensions or footprint of each half-track
permanent raised pavement marker are approximately two inch-
es (2.00") long and approximately four inches (4.00") wide.
Each one of the permanent half-track raised pavement markers
(RPMs) 312 has an adhesive pad or block member 314 fixedly
secured to the undersurface portion 316 of the permanent
half-track raised pavement marker 312, and in accordance
with.the principles and teachings of the present invention,
and in a manner similar to that characteristic of the array
of collated temporary raised pavement markers (TRPMs) 210 as
disclosed within FIGURE 3, the adhesive pads or block mem-
bers 314 of the plurality of permanent half-track raised
pavement markers (RPMs) 312 are all removably disposed upon
a single or common release sheet or release liner 318. It is
38
CA 02461496 2004-03-19
noted that while each adhesive pad or block member 314 may
comprise, for example, a suitable epoxy, alternatively, a
suitable pressure-sensitive adhesive (PSA) may also be uti-
lized.
In accordance with another unique and novel fea-
ture characteristic of the collated array of permanent half-
track raised pavement markers (RPMs) 312, and again as was
the case with the temporary raised pavement markers (TRPMs)
210 of the present invention as illustrated within FIGURE 3,
the plurality of permanent half-track raised pavement mark-
ers (RPMs) 312 are initially mounted upon the single or com-
mon release sheet or release liner 318 at predetermined lo-
cations spaced along the longitudinal extent of the release
sheet or release liner 318 such that predetermined equal
distances are defined between successive ones of the plural-
ity of permanent half-track raised pavement markers (RPMs)
312. More particularly, as can best be appreciated from FIG-
URE 9, each one of the plurality of permanent half-track
raised pavement markers (RPMs) 312 is adapted to be secured
upon the region 320 of the release sheet or release liner
318 entitled PSA PATCH, and it is seen that the permanent
half-track raised pavement markers (RPMs) 312 are longitud- _
inally spaced from each other, along the longitudinal extent
of the release sheet or release liner 318, by means of a
linear distance of approximately four and three-quarters
inches (4.75") as measured from a particular edge portion
322 of each one of the plurality of permanent half-track
raised pavement markers (RPMs) 312. As was also the case
with the collated array of temporary raised pavement markers
(TRPMs) 210, it is also noted that the lateral or widthwise
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CA 02461496 2004-03-19
extent of the release sheet or release liner 31.8 is greater
than that of the PSA PATCH region 320 such that the lateral
ends of the adhesive do not in fact extend beyond the late-
ral edges of the release sheet or release liner 318. It will
be recalled that the reason for this relative structural ar-
rangement between the plurality of temporary raised pavement
markers (TRPMs) 211 and the release sheet or release liner
220 resides in the packaging of the temporary raised pave-
ment markers (TRPMs) 211 in preparation for the serial dis-
pensing and application of the temporary raised pavement
markers (TRPMs) 211 onto the roadway surface 230.
In a similar manner, then, as can be further ap-
preciated from FIGURE 8, the plurality of permanent half-
track raised pavement markers (RPMs) 312 are adapted to be
disposed in the nested or collated array 310 with respect to
each other whereby the collated array 310 of permanent half-
track raised pavement markers (RPMs) 312 can likewise be
packaged in a suitable inclined conveyor box or container,
not shown for clarity purposes, with the undersurface por-
tion 316 of an upper one of the permanent half-track raised
pavement markers (RPMs) 312 disposed atop the upper surface
portion 323 of a lower one of the permanent half-track rais- _
ed pavement markers (RPMs) 312, in preparation for the seri-
al dispensing and application of the permanent half-track
raised pavement markers (RPMs) 312 onto the roadway surface
230. As was the case with the temporary raised pavement
markers (TRPMs) 211, the disposition of the plurality of
permanent half-track raised pavement markers (RPMs) 312
within the inclined conveyor box or container, not shown,
permits the plurality of permanent half-track raised pave-
CA 02461496 2004-03-19
ment markers (RPMs) 312 to be collectively disposed along a
linear locus, similar to the linear locus LL characteristic
of the array of temporary raised pavement markers (TRPMs)
210 as disclosed within FIGURE 5, so as to likewise be cap-
able of being dispensed onto the roadway surface 230 in a
manner similar to that illustrated in FIGURES 5 and 7 with
respect to the temporary raised pavement markers (TRPMs)
211. More particularly, the collated array of permanent
half-track permanent raised pavement markers (RPMs) 312 is
adapted to be disposed within the inclined conveyor box or
container, not shown, through which the plurality of perman-
ent half-track raised pavement markers (RPMs) 312 can be
conveyed without causing interference with the conveyor box
or container, not shown.
Accordingly, when the collated nested array or as-
sembly 310 of permanent half-track raised pavement markers
(RPMs) 312 is disposed within the inclined conveyor box or
container, not shown, the lateral side edge portions of the
release sheet or release liner 318 will effectively be fold-
ed upwardly alongside the lateral side edge portions of each
one of the plurality of permanent half-track raised pavement
markers (RPMs) 312 so as to effectively cover the lateral _
side edge portions of each adhesive pad or block member 314
whereby such lateral side edge portions of the adhesive pads
or block members 314 cannot adhere or become stuck to the
interior side wall portions of the conveyor box or contain-
er, not shown, within which the plurality of permanent half-
track raised pavement markers (RPMs) 312 are disposed. The
aforenoted conveyor box or container, not shown, is of
course open at both the lower and upper regions thereof so
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CA 02461496 2004-03-19
as to permit the plurality of permanent half-track raised
pavement markers (RPMs) 312 to be respectively dispensed
onto the roadway surface 230, as well as to permit a fresh
supply of permanent half-track raised pavement markers
(RPMs) 312 to be inserted into the conveyor box or contain-
er, not shown, for ultimate use in dispensing the plurality
of permanent half-track raised pavement markers (RPMs) 312
onto the roadway surface 230.
Still yet further, with particular reference being
particularly made to FIGURE 8, and as was the case with the
collated array of temporary raised pavement markers (TRPMs)
210, when the permanent half-track raised pavement markers
(RPMs) 312 are disposed within the nested or collated array
of permanent half-track raised pavement markers (RPMs) 312,
the release sheet or release liner 318 is disposed within a
fan-folded array between each successive pair of the nested
or partially overlapped permanent half-track raised pavement
markers (RPMs) 312. More particularly, it is seen or appre-
ciated, for example, from FIGURES 8 and 9, that after the
plurality of permanent half-track raised pavement markers
(RPMs) 312 have been initially disposed upon the release
sheet or release liner 318 at the predetermined longitudin-
ally spaced locations thereof, then when the release sheet
or release liner 318 is formed into its fan-folded array or
state, the release sheet or release liner 318 is disposed
beneath the adhesive pad or block member 314 of each one of
the permanent half-track raised pavement markers (RPMs) 312
whereby the release sheet or release liner 318 extends rear-
wardly beneath each one of the adhesive pads or block mem-
bers 314 of each permanent half-track raised pavement marker
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CA 02461496 2004-03-19
(RPM) 312 and is folded so as to form a rearwardly disposed
or oriented loop portion 324 beneath a rear or trailing edge
portion 326 of each adhesive pad or block member 314 as is
clearly disclosed within FIGURE 8. The release sheet or re-
lease liner 318 is then routed across the upper surface por-
tion of each one of the plurality of permanent half-track
raised pavement markers (RPMs) 312 and is subsequently fold-
ed and routed around the forward or leading edge portion 328
of each one of the plurality of permanent half-track raised
pavement markers (RPMs) 312 so as to form a forwardly dis-
posed or oriented loop portion 330. The collated nested ar-
ray or assembly 310 of permanent half-track raised pavement
markers (RPMs) 312, comprising the release sheet or release
liner 318 folded or interwoven between the successive pairs
of permanent half-track raised pavement markers (RPMs) 312,
is therefore readied whereby individual dispensing of the
plurality of permanent half-track raised pavement markers
(RPMs) 312 may now be achieved.
With respect to the actual dispensing and applica-
tion of the individual permanent half-track raised pavement
markers (RPMs) 312 onto the roadway surface 230, the system
or apparatus as disclosed within FIGURES 5-7, which was uti-
in connection with the dispensing and application of
lized
the temporary raised pavement markers (TRPMs) 211 onto the
roadway surface 230, may likewise be utilized in connection
with the dispensing and application of the individual perm-
anent half-track raised pavement markers (RPMs) 312 onto the
roadway surface 230. Accordingly, a description of such an
operation will be omitted herefrom in the interests of brev-
ity. However, one critical difference between the actual
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CA 02461496 2004-03-19
dispensing and application procedure or technique, which is
utilized in connection with the dispensing and application
of the individual permanent half-track raised pavement mark-
ers (RPMs) 312 onto the roadway surface 230, as compared to
the dispensing and application procedure or technique, which
is utilized in connection with the dispensing and applica-
tion of the temporary raised pavement markers (TRPMs) 211
onto the roadway surface 230, is to be noted. As will be
readily recalled, each one of the temporary raised pavement
markers (TRPMs) 211 has a substantially L-shaped cross-sec-
tional configuration and comprises a relatively short, norm-
ally horizontally extending leg member 212 and a relatively
long, normally vertically extending leg member 214. In addi-
tion, when each one of the temporary raised pavement markers
(TRPMs) 211 is dispensed onto the roadway surface 230 as il-
lustrated, for example, within FIGURE 7, the temporary rais-
ed pavement marker (TRPM) 211 is initially disposed in a
prone position with the relatively long, normally vertically
extending leg member 214 disposed horizontally upon the
roadway surface 230.
Accordingly, when the applicator wheel 262 rolls
over the dispensed temporary raised pavement marker (TRPM) _
211 disposed upon the roadway surface 230, the applicator
wheel 262 will cause the temporary raised pavement marker
(TRPM) 211 to effectively pivot around the corner or transi-
tional section 216 thereof so as to dispose the temporary
raised pavement marker (TRPM) 211 in its normal or upstand-
ing or upright mode whereby the same will be adhesively
bonded to the roadway surface 230 by means of the adhesive
pad or block member 218 disposed beneath the relatively
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CA 02461496 2004-03-19
short, horizontally extending leg member 212. This particu-
lar mode of application is not, however, possible in connec-
tion with the plurality of permanent half-track raised pave-
ment markers (RPMs) 312 in view of the fact that each one of
the permanent half-track raised pavement markers (RPMs) 312
does not have a substantially L-shaped cross-sectional con-
figuration, but, to the contrary, has a substantially flat-
plate configuration.
Therefore, it is to be noted that in order to
achieve the proper application of individual ones of the
permanent half-track raised pavement markers (RPMs) 312 onto
the roadway surface 230, the stripper plate 244 of the dis-
pensing system or apparatus, as disclosed within FIGURES
5-7, must be disposed parallel to and immediately above the
roadway surface 230 such that the rear or trailing edge
portion 326 of each permanent half-track raised pavement
marker (RPM) 312 is caused to immediately engage the roadway
surface 230, as the same is being discharged by the stripper
plate 244 from the release sheet or release liner 318, with-
out permitting the permanent half-track raised pavement
marker (RPM) 312 to pivot around the stripper plate 244, as
was the case with the dispensing and application of the plu-
of temporary raised pavement markers (TRPMs) 211. In
rality
this manner, the bottom or undersurface portion 316, having _
the adhesive pad or block member 314 disposed thereon, can
be directly and immediately applied onto the roadway surface
230 whereby the applicator wheel 262 can then roll over the
upper surface portion of each permanent half-track raised
pavement marker (RPM) 312 so as to fixedly secure the par-
ticular permanent half-track raised pavement marker (RPM)
CA 02461496 2004-03-19
312 to the roadway surface 230 by means of the adhesive pad
or block member 318.
While the principles and teachings of the present
invention have been disclosed as being applicable in connec-
tion with permanent half-track raised pavement markers
(RPMs), the principles and'teachings of the present inven-
tion are equally applicable to different types of permanent
full-track raised pavement markers (RPMs). With reference
therefore being made to FIGURE 10, a new and improved assem-
bly of permanent full-track raised pavement markers (RPMs)
is disclosed and is generally indicated by the reference
character 410, it being noted that, as disclosed within
FIGURE 9, the permanent full-track raised pavement markers
(RPMs) and the associated release sheet or release liner are
shown prior to the actual adhesive bonding of the permanent
raised pavement markers (RPMs) onto the release sheet or re-
lease liner and the subsequent fan-folding of the components
into the aforenoted fan-folded collated array of permanent
full-track raised pavement markers (RPMs). More particular-
ly, it can be appreciated that the assembly of permanent
full-track raised pavement markers (RPMs) 410 is seen to
comprise first and second embodiments of permanent fu11- _
track raised pavement markers (RPMs) 412 and 414 wherein
each one of the permanent raised pavement markers (RPMs)
412,414 respectively has a substantially square base section
416,418 and is known in the industry as a permanent full-
track raised pavement marker (RPM) in that the external di-
mensions or footprint of each full-track permanent raised
pavement marker (RPM) are approximately four inches (4.0011)
long and approximately four inches (4.00") wide.
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CA 02461496 2004-03-19
It is to be appreciated further that the body sec-
tion of the permanent full-track raised pavement markers
(RPMs) 412,414 respectively have substantially trapezoidal
cross-sectional configurations comprising a substantially
horizontally disposed upper section 420,422 and pairs of op-
positely disposed inclined side wall sections 424,426. Suit-
ably colored reflective elements 428,430, such as, for ex-
ample, red or yellow, may be fixedly embedded within one or
both of the inclined or sloped side wall sections 424,426 of
each permanent full-track raised pavement marker (RPMs) 412,
414 such that when the permanent full-track raised pavement
markers (RPMs) 412,414 are affixed to the roadway surface
230, the same may be readily seen or detected as a result
of, for example, vehicle headlight beams illuminating the
reflective elements 428,430. As was the case with the perm-
anent half-track raised pavement markers (RPMs) 312, each
one of the permanent full-track raised pavement markers
(RPMs) 412,414 is adapted to have an adhesive pad or block
member, not shown, fixedly secured to the undersurface por-
tion thereof, the permanent half-track raised pavement mark-
er 312, and in accordance with the principles and teachings
of the present invention, and in a manner similar to that
characteristic of the array of permanent half-track raised _
pavement markers (RPMs) 312 as disclosed within FIGURE 9,
the adhesive pads or block members of the plurality of perm-
anent full-track raised pavement markers (RPMs) 412,414 are
all removably disposed upon a single or commor.L release sheet
or release liner 432.
With reference continuing to be made to FIGURE 10,
it is noted that as was the case with the permanent half-
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CA 02461496 2004-03-19
track raised pavement markers (RPMs) 312 of the present in-
vention as illustrated within FIGURE 9, the plurality of
permanent full-track raised pavement markers (RPMs) 412,414
are initially mounted upon the single or common release lin-
er or release sheet 432 at predetermined locations spaced
along the longitudinal extent of the release sheet or re-
lease liner 432 such that predetermined equal distances are
defined between successive ones of the plurality of perman-
ent full-track raised pavement markers (RPMs) 412,414. More
particularly, as can best be appreciated from FIGURE 10,
each one of the plurality of permanent full-track raised
pavement markers (RPMs) 412,414 is adapted to be secured
upon the region 434 of the release sheet or release liner
432 entitled PSA PATCH, and it is seen that the permanent
full-track raised pavement markers (RPMs) 412,414 are 1on-
gitudinally spaced from each other, along the longitudinal
extent of the release sheet or release liner 432, by means
of a linear distance of approximately seven and three-eighth
inches (7.37511) as measured between respective edge portions
436,438 of each one of the plurality of permanent full-track
raised pavement markers (RPMs) 412,414.
As was also the case with the collated array of
permanent half-track raised pavement markers (RPMs) 312, it
is noted that the lateral or widthwise extent of the release
sheet or release liner 432 is greater than that of the PSA
PATCH regions 434 such that the lateral ends of the adhesive
pads or block members do not in fact extend beyond the late-
ral edges of the release sheet or release liner 434 in order
to facilitate the packaging of the permanent full-track
raised pavement markers (TRPMs) 412,414 within a suitable
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CA 02461496 2004-03-19
inclined box or container, not shown, in preparation for the
serial dispensing and application of the permanent full-
track raised pavement markers (TRPMs) 412,414 onto the road-
way surface 230. As has been discussed in connection with
the permanent half-track raised pavement markers (RPMs) 312,
the disposition of the plurality of permanent full-track
raised pavement markers (RPMs) 412,414 within the inclined
conveyor box or container, not shown, permits the plurality
of permanent full-track raised pavement markers (RPMs) 412,
414 to be collectively disposed along the aforenoted linear
locus LL so as to likewise be capable of being dispensed on-
to the roadway surface 230 in a manner similar to that pre-
viously described in connection with the permanent half-
track raised pavement markers (RPMs) 312.
It is also to be appreciated, as was the case with
the packaging of the permanent half-track raised pavement
markers (RPMs) 312 within the inclined box or container, not
shown, that the structural arrangement defined between the
release sheet or release liner 432 and the plurality of
permanent full-track raised pavement markers (RPMs) 412,414
permits the array of permanent full-track raised pavement
markers (RPMs) 412,414 to be disposed within the box or con-
tainer, not shown, without interference therebetween in view
of the fact that the lateral side edge portions of the re-
lease sheet or release liner 432 will effectively be folded
upwardly alongside the lateral side edge portions of each
one of the plurality of permanent full-track raised pavement
markers (RPMs) 412,414 so as to effectively cover the late-
ral side edge portions of each adhesive pad or block member,
not shown, whereby such lateral side edge portions of the
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CA 02461496 2004-03-19
adhesive pads or block members, not shown, cannot adhere or
become stuck to the interior side wall portions of the con-
box or container, not shown. Still fiarther, it is also
veyor
to be noted that, in connection with the actual dispensing
and application of the plurality of permanent full-track
raised pavement markers (RPMs) 412,414 onto the roadway sur-
face 230, the plurality of permanent full-track raised pave-
ment markers (RPMs) 412,414 are adapted to be dispensed in a
manner similar to that of the plurality of permanent half-
track raised pavement markers (RPMs) 312 in that the bottom
or undersurface portions of the same are disposed in immedi-
ate contact or engagement with the roadway surface 230, aft-
er being dispensed or discharged from the stripper plate
244, such that the applicator wheel 262 can immediately roll
thereover.
With reference lastly being made to FIGURES 11-13,
additional embodiments of permanent full-track raised pave-
ment markers (RPMs) are respectively disclosed at 512, 612,
and 712, and it is to be noted that all of these permanent
full-track raised pavement markers (RPMs) 512,612,712 are
adapted to be mounted upon release sheets or release liners,
not shown, so as to form collated arrays of permanent full-
raised pavement markers (RPMs) which can also be dis-
track
pensed and applied to the roadway surface 230 by means of
the apparatus or system as disclosed within FIGURES 5-7.
Briefly, it is seen, for example, that in connection with
the third embodiment of a permanent full-track raised pave-
ment marker (RPM) 512 as disclosed within FIGURE 11, the
base section 514 of the permanent full-track raised pavement
marker 512 has a substantially elliptical configuration
CA 02461496 2004-03-19
wherein the diametrical extent of the permanent full-track
raised pavement marker 512, as taken along the major axis
thereof, is approximately four inches (4.00"). The permanent
full-track raised pavement marker 512 also has a substan-
tially trapezoidal cross-sectional configuration comprising
a raised upper surface 516 and a pair of oppositely disposed
inclined side sections 518,518 upon which reflective ele-
ments 520,520 are respectively disposed.
As can be further appreciated from FIGURE 12, the
fourth embodiment of a permanent full-track raised pavement
marker (RPM) 612 is seen to comprise a substantially domed
body section 614 having a circular base section 616. The
circular base section 616 has a footprint which encompasses
a four inch (4.00") diametrical extent, and it is further
seen that oppositely disposed interior or radially inner
sections 618,618 of the domed body section 614 are recessed
so as to respectively accommodate reflective elements 620,
620. Lastly, as can be appreciated from FIGURE 13, the fifth
embodiment of a permanent full-track raised pavement marker
(RPM) 712 is seen to be similar to the fourth embodiment
permanent full-track raised pavement marker (RPM) 612 in
that the same comprises a substantially domed body section
714 having a circular base section 716 which also has a
footprint which encompasses a four inch (4.00") diametrical
extent. However, in lieu of the permanent full-track raised
pavement marker (RPM) 712 being provided with reflective
elements, as disclosed at 620,620 in conriection with the
permanent full-track raised pavement marker (RPM) 612, the
permanent full-track raised pavement marker (RPM) 712 is
devoid of reflective elements, and instead, is colored white
51
CA 02461496 2004-03-19
so as to also facilitate being readily seen or visible dur-
ing nighttime hours as a result of the reflection thereon of
automotive headlight beams.
Thus, it may be seen that in accordance with the
principles and teachings of the present invention, there has
been provided a new and improved collated or nested array of
temporary raised pavement markers (TRPMs) and permanent
half-track and full-track raised pavement markers (RPMs)
wherein the plurality of temporary raised pavement markers
(TRPMs) and permanent half-track and full-track raised pave-
ment markers (RPMs) are fixedly secured upon a release sheet
or release liner at predetermined, longitudinally spaced lo-
cations along the release sheet or release liner, and where-
in, in accordance with a unique and novel feature character-
istic of the present invention, the release sheet or release
liner is fan-folded between the successively stacked or
nested temporary raised pavement markers (TRPMs), or perm-
anent half-track and full-track raised pa=vement markers
(RPMs), in such a manner that the rearwardly disposed or
ori-ented folds or loops of the release sheet or release
liner are disposed beneath each associated one of the
adhesive pad or block members of the respective temporary _
raised pavement markers (TRPMs), or permanent half-track and
full-track raised pavement markers (RPMs), at a position
just forward of the rear edge portion of the adhesive pad or
block member. In this manner, when the release sheet or re-
lease liner is to be peeled or stripped from each successive
temporary raised pavement marker (TRPM), or permanent half-
track and full-track raised pavement marker (RPM), the re-
lease sheet or release liner is effectively unfolded so as
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CA 02461496 2004-03-19
to effectively cause the feather-edge bond boundary to be
recombined with the primary mass of the adhesive pad or
block member and thereby be assimilated thereby. According-
ly, the peeling or stripping of the release sheet or release
liner from the plurality of temporary raised pavement mark-
ers (TRPMs), or from the plurality of permanent half-track
and full-track raised pavement markers (RPMs), is able to be
achieved without encountering the difficulties previously
characteristic of PRIOR ART raised pavement markers (RPMs).
Obviously, many variations and niodifications of
the present invention are possible in light of the above
teachings. It is therefore to be understood that within the
scope of the appended claims, the present invention may be
practiced otherwise than as specifically described herein.
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