Language selection

Search

Patent 2024504 Summary

Third-party information liability

Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.

Claims and Abstract availability

Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:

  • At the time the application is open to public inspection;
  • At the time of issue of the patent (grant).
(12) Patent Application: (11) CA 2024504
(54) English Title: ADHESIVE SPREADER
(54) French Title: ENDUISEUSE DE SUBSTANCES ADHESIVES
Status: Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication
Bibliographic Data
(51) International Patent Classification (IPC):
  • B05C 17/00 (2006.01)
(72) Inventors :
  • READING, JAMES (Canada)
  • KRUSE, ROBERT (Canada)
(73) Owners :
  • JAMES READING
  • ROBERT KRUSE
(71) Applicants :
  • JAMES READING (Canada)
  • ROBERT KRUSE (Canada)
(74) Agent: SMART & BIGGAR LP
(74) Associate agent:
(45) Issued:
(22) Filed Date: 1990-08-31
(41) Open to Public Inspection: 1992-03-01
Availability of licence: N/A
Dedicated to the Public: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data: None

Abstracts

English Abstract


73545-2 SDB:hmb
ABSTRACT
This invention provides a tool for dispensing and applying
viscous material such as tar and adhesives. The tool can be
disassembled for cleaning and reassembled for subsequent use.


Claims

Note: Claims are shown in the official language in which they were submitted.


73545-2
THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A tool for dispensing and applying viscous material to a
surface, said tool having a substantially wedge shaped body
comprised of two shell portions fastened together, said body
having an input at one end thereof, and a nozzle at the other end
thereof through which viscous material may be extruded, wherein
said tool can be disassembled for cleaning by separating said
shell portions, and reassembled for re-use.
2. A tool for dispensing and applying viscous material to a
surface comprising: a substantially wedge shaped body having an
input, a neck portion from which flares a pair of side walls, said
side walls tapering to a nozzle, wherein said body is comprised of
two shell portions detachably fastened together; and a collar,
which may be connected to a source of viscous material, and which
is receivable on said neck portion of said body.
3. A tool for dispensing and applying viscous material
which may be disassembled for cleaning and reassembled for re-use,
comprising:
two hingedly connected shell portions which may be
closed, in clamshell-like manner, to define a substantially wedge-
shaped body, said body having an input, a neck portion which
flares to define a pair of side walls, and a nozzle;

detachable fastening means for securing said shell
portions together when said shell portions are closed; and
a collar which is received on said neck portion of said
body, and which connects said body to a source of viscous
material.
4. A tool as claimed in claim 1 or 2 wherein said shell
portions are fastened together by means of at least one pillar,
said pillar being formed by a rod member in one of said shell
portions being received by a channel in the other of said shell
portions, and said rod is secured within said channel by screw
means.
5. A tool as claimed in claim 3 wherein rod members in one
of said shell portions are received by tubular posts in the other
of said shell portions when said shell portions are closed,
thereby forming pillars which act to retain said shell portions
together in a closed position to form said body.
6. A tool as claimed in claim 3 wherein rod members in one
of said shell portions are received by tubular posts in the other
of said shell portions when said shell portions are closed,
thereby forming pillars which act to retain said shell portions
together in a closed position to form said body, and screws are
employed as fastening means for securing said shell portions
together.

7. A tool as claimed in claim 5 wherein said fastening
means are screws.
8. A tool as claimed in claim 1,2,3,5,6 or 7 wherein one of
said shell portions has a groove extending along the top edges of
the sides of said neck portion and said side walls, and the other
of said shell portions has a tongue extending along the top edges
of the sides of said neck portion and said side walls, so that
when said shell portions form said body, said tongue snaps into
said groove.
9. A tool as claimed in claim 1,2,3,5,6 or 7 wherein
hooklike members on one of said shell portions engage brackets on
the other of said shell portions when said shell portions form
said body.
10. A tool as claimed in claim 1,2,3,5,6 or 7 wherein said
nozzle has a plurality of apertures.
11. A tool as claimed in claim 1 or 2 wherein said shell
portions are connected to each other by hinge means.
12. A tool as claimed in claim 2,3,5,6 or 7 wherein said
collar features locking means to prevent accidental dislodgement
from said neck portion.

13. A tool as claimed in claim 1,2,3,5,6 or 7 which is made
of polypropylene.

Description

Note: Descriptions are shown in the official language in which they were submitted.


73545-2 SDB:nmb
This invention is directed to a tool for dispensing and
applying viscous materials, such as tar, adhesives, caulking and
the like to seams, panels or joints.
The present invention can be advantageously used in numerous
ways, for example to dispense and spread adhesives onto tile,
panelling, flooring, cove-base tiles and carpet seams. The
present invention can also be used as a roofing tool for applying
tar to roof flashings, vents and shingles.
In these kinds of operations, it is desirable that the
viscous material be dispensed in a controlled manner and spread
evenly across the surface. Otherwise, a tedious cleaning job is
often required where too much, or an uneven amount of viscous
material is deposited.
Known applicator tools are either blade-type or have nozzles
through which the viscous material is extruded. With blade-type
applicators, it is difficult to ensure an even dispensing and
spreading of the viscous materiall although such applicators may
be cleaned for re-use. On the other hand, nozzle type applicators
may permit a more even dispensing and spreading of material,
however, they are difficult to clean. Residue of the viscous
material, such as tar or adhesive, sets inside the nozzle, and
unless it is removed, the ability of the applicator to evenly
dispense material during subsequent use is greatly diminished.

3~
73545-2 SDB:hmb
The present invention overcomes these disadvantages by
providing a tool which can evenly dispense viscous material to a
surface and which is also relatively easy to clean, thereby
enabling it to be re-usedO
In one aspect, the invention provides a tool for dispensing
and applying a viscous material to a surface, said tool having a
substantially wedge shaped body comprised of two shell portions
fastened together, said body having an input at one end thereof,
and a nozzle at the other end thereof through which viscous
material may be extruded, wherein said tool can be disassembled
for cleaning by separating said shell portions, and reassembled
for re-use.
In another aspect, the invention provides a tool for
dispensing and applying viscous material to a surface, comprising:
a substantially wedge shaped body having an input, a neck portion
from which flares a pair of side walls, said side walls tapering
to a nozzle, wherein said body is comprised of two shell portions
detachably fastened together; and a collar which may be connected
to a source of viscous material, and which is receivable on said
neck portion of said body.
In a further aspect, the invention provides a tool for
dispensing and applying viscous material which may be disassembled
for cleaning and reassembled for re-use, comprising:
,

73545-2 SDB:hmb
two hingedly connected shell portions which may be closed, in
clamshell-like manner, to define a substantially wedge-shaped body
having an input,
a neck portion which flares to define a pair of side walls;
detachable fastening means for securing said shell portions
together when said shell portions are closed t and
a collar which is received at one end thereof by said neck
portion, and which may be secured at the other end thereof to a
source of viscous material.
. .
The invention will be more particularly described with
reference to the accompanying drawings, which illustrate preferred
embodiments of the invention.
Figure 1 is a front view of one embodiment of the present
invention.
Figure ~ is a side view of the body of the present invention,
with the collar shown in cross-section.
Figure 3 is a side view of a cross-section of the main body
of the invention.
- . :

73545-2 SDB:hmb
Figure 4 is an inside view of the body of one embodiment of
the present invention.
Figure 5 is a perspective view of a collar, which is a
component of the tool in a preferred embodiment of the invention.
Figure 6 is a schematic representation of showing the present
invention assembled for use with a caulking gun.
The tool of the present invention consists of a substantially
wedge shaped body 10, having a neck portion 11 with an input lla.
Neck portion 11 flares to form side walls 12 which further extend
downwardly to form end walls 13 which are substantially parallel
with the walls of neck portion 11. In side view, the sides of
tool body 10, extend to bevelled areas 14, which taper to form
nozzle 15. Viscous material is extruded through one or more
apertures 16 in nozzle 15.
A collar 17 may be fitted onto neck 11 and onto the
dispensing end of a cartridge, caulking gun or other source of
viscous material, as shown in Figure 6. Collar 17 preferably has
a locking means which acts to prevent accidental dislodgement of
collar 17 from neck 11. A preferred locking means is a groove 18
on collar 17 which receives a projection 19 on body 10. By a
slight twisting action, projection 19 can be made to engage groove
18 and abut a portion thereof as at 20, so that collar 17 can be

~2~
73545-2 SDB:hmb
only removed by a twisting and lifting movement, thus minimizing
the chance that collar 17 will be dislodged accidentally.
The interior of collar 17 preferably has a rim 21 which may
tend to reduce any back flow of viscous material through the
channel defined by neck portion 11 and collar 17.
Body 10 is comprised of two shell portions 23 and 24. Shell
portions 23 and 24 are secured together along their respective
edges or borders to form body 10. Shell portions 23 and 24 should
be tightly sealed together at their boundary 25 so that there are
no gaps through which viscous material can seep or leak when the
tool is in use. It is important that shell portions 23 and 24 be
securely fastened together because the walls of the body 10 may be
subjected to considerable pressure when the tool is in use.
It has been found that the tool of the present invention is
preferably made from plastic, and most preferably polypropylene,
the properties of which promote smooth flow of viscous material,
and which can also be easily cleaned.
In the preferred embodiment, as shown in figure 4, shell
portions 23 and 24 are joined by one or more thin plastic
membranes 39 which act as a hinge. In this embodiment, portions
23 and 24 may be closed, in clam-shell like manner, to form tool
body 10. The advantage of this construction is that it enables

73545-2 SD~:hmb
tool body lO to be constructed as a unitary piece, with resultant
economy of manufacture. However, it is to be understood that the
scope of the present invention also extends to a tool of the type
described which is comprised of two shell portions 23 and 24 which
are so not joined.
In a preferred embodiment, shell portion 23 features one or
more tubular posts 26, and preferably 2 pairs of tubular posts,
26a and 26b. Posts 26a are oriented opposite each other relative
to the line of symmetry of shell portion 23, as are posts 26b.
Shell portion 2g features posts 27a and 27b, whose locations on
shell portion 24 mirror the locations of posts 26a and 26b on
shell portion 23. Posts 27a and 27b have upstanding rods 28a and
28b and posts 26a, 26b have channels 29a and 29b. Shell portions
23 and 2g are joined to form body 10, by orienting posts 26a with
posts 27a, and posts 26b with posts 27b so that rods 28a, 28b are
received in channels 29a and 29b in order to form pillars 30a and
30b.
Pillars 30a, 30b retain shell portions 23 and 24 together.
Preferably four pillars will be provided; a pair near neck portion
11 where walls 12 begin to flare and a second pair near noz~le 15.
Due to the tapering of body 10, pillars 30b will be shorter than
pillars 30a. Fastening means to ensure a tight seal which may be
employed, as shown by the drawings, include screws 35 received
through channels 29 and/or a groove 31 extending along the side of
, . ~

2 ~
73545-2 SDB:hm~
portion 23 and a reciprocal tongue 32 which extends along tne
sides of portion 24, so that when shell portions 23 and 24 are
joined together, tongue 32 snaps into groove 31. An additional
inner wall or bank 40 may be featured to provide additional
reinforcement to side walls 12 and protect against seepage of
viscous material.
Additional fastening means, such as one or more brackets 33
located along the sides of either shell portion 23 or 24, and
companion hooklike members 34 mounted along the side of the other
of shell portions 23, 24 are also preferably used. When hooklike
members 34 engage brackets 33, secure engagement of shell portions
23 and 24 is further ensured.
Collar 17, when fitted onto neck 11, also serves as an
additional means of promoting tight engagement of shell portions
23 and 24 and a tight seal along the boundaries thereof.
When in use, viscous material from a cartridge or other
source of supply, flows into input 12 and through the channel as
defined by collar 17 and neck portion 11. The wedge shape of body
10 and the orientation of the walls thereof ensure an even flow of
viscous material through body 10. Viscous material flows through
neck portion 11, along the walls 12 and downwardly into a
reservoir defined by bevelled areas 14, one of which has a lip
portion 36 in nozzle 15. The viscous material is extruded evenly
,
'

2'~
73545-2 SDe:hmb
over lip portion 36 and through one or more apertures 16 in nozzle
15. Depending on the job being done, it may be preferred to have
one wide strip of viscous material extruded, wherein nozzle 15 Aas
a single oblong slot. Alternatively, where it is desired to
extrude several narrow strips or beads of material, a plurality of
apertures may be provided, as shown by Figure 4.
A tool featuring a nozzle with 11 apertures is most versatile
and common since it can be used for many purposes.
The wedge shape of the present invention allows strips or
beads of viscous material having varying thicknesses to be applied
to a surface and also permits viscous material to be applied flush
with the surface, which is advantageous where such material is
being applied to e.gO corners. The thickness of the bead being
applied to the surface will vary depending upon: the angle at
which the nozzle meets the surface, the pressure applied, and the
speed at which the nozzle is moved along the surface. By varying
these three variables: speed, angle and pressure, the operator can
control the thickness of bead of viscous material which is
deposited on the surface. Accordingly, the viscous material which
is deposited can vary from a 1/4 inch thick bead to a very thin
strip of material. This is advantageous because different
thicknesses of material are required for different applications
and this permits the tool of the present invention to be used for
many applications, e.g. cove base, carpet seams and edges, foam

3 ~
73545-2 SDs:hmb
insulation board, parquet flooring, panelling, tub kits, ceramic
tile, quarry tile, mirror tile, wood mouldings, wainscoting,
flooring and many more.
If desired, a piece of duct tape may be placed over some of
the apertures in the nozzle, and thereby allow the operator to
control the number of beads of viscous material being extruded
where viscous material is being applied to joists or studs. The
duct tape may also seal the tool for future use while still
mounted on the cartridge or caul~ing gun.
After use, the tool of the present invention can be cleaned
for re-use, by removing collar 17 and separating shell portions 23
and 24 from each other. This enables the inside of the tool to be
cleaned and residue removed, whereupon the tool can be reassembled
for subsequent use.
,

Representative Drawing
A single figure which represents the drawing illustrating the invention.
Administrative Status

2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.

Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.

For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Event History , Maintenance Fee  and Payment History  should be consulted.

Event History

Description Date
Time Limit for Reversal Expired 1998-08-31
Application Not Reinstated by Deadline 1998-08-31
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice 1997-09-02
Inactive: Abandon-RFE+Late fee unpaid-Correspondence sent 1997-09-02
Application Published (Open to Public Inspection) 1992-03-01

Abandonment History

Abandonment Date Reason Reinstatement Date
1997-09-02
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
JAMES READING
ROBERT KRUSE
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

To view selected files, please enter reCAPTCHA code :



To view images, click a link in the Document Description column. To download the documents, select one or more checkboxes in the first column and then click the "Download Selected in PDF format (Zip Archive)" or the "Download Selected as Single PDF" button.

List of published and non-published patent-specific documents on the CPD .

If you have any difficulty accessing content, you can call the Client Service Centre at 1-866-997-1936 or send them an e-mail at CIPO Client Service Centre.


Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Cover Page 1992-03-01 1 13
Abstract 1992-03-01 1 7
Drawings 1992-03-01 2 48
Claims 1992-03-01 4 86
Descriptions 1992-03-01 9 257
Representative drawing 1999-03-01 1 7
Courtesy - Abandonment Letter (Maintenance Fee) 1997-10-06 1 188
Courtesy - Abandonment Letter (Request for Examination) 1997-11-25 1 172
Fees 1996-07-03 1 49
Fees 1995-07-06 1 47
Fees 1994-11-14 2 51
Correspondence 1994-12-08 2 43
Fees 1993-07-02 1 23
Fees 1992-08-31 1 19