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Sommaire du brevet 2428608 

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(12) Brevet: (11) CA 2428608
(54) Titre français: SYSTEME DE FIXATION DE ROUE DE VEHICULE
(54) Titre anglais: VEHICLE WHEEL ATTACHMENT SYSTEM
Statut: Périmé et au-delà du délai pour l’annulation
Données bibliographiques
Abrégés

Abrégé français

Système de fixation de roue de véhicule servant à faciliter le couplage hydraulique d'une roue de véhicule à un véhicule. Le système comprend un ensemble de moyeu doté d'un piston couplé de façon hydraulique à un ensemble de piston. L'ensemble de moyeu passe par une roue et s'attache à un rotor. L'ensemble de moyeu est pressurisé afin d'allonger l'ensemble de piston pour serrer la roue entre l'ensemble de moyeu et le rotor. Dans une configuration, l'ensemble de piston est utilisé de façon hydraulique sans le piston.


Abrégé anglais

A vehicle wheel attachment system for facilitating hydraulic coupling of a vehicle wheel to a vehicle includes a hub assembly having a piston hydraulically coupled to a plunger assembly. The hub assembly is passed through a wheel and attached to a rotor. The hub assembly is pressurized to extend the plunger assembly to clamp the wheel between the hub assembly and the rotor. In an embodiment, the plunger assembly is utilized hydraulically without the piston.

Revendications

Note : Les revendications sont présentées dans la langue officielle dans laquelle elles ont été soumises.


9
WHAT IS CLAIMED IS:
1. A vehicle wheel attachment system comprising:
.cndot. a hub having a hollow interior space;
.cndot. a piston positioned within the interior space of the hub;
.cndot. a hydraulic plunger assembly having an interior portion positioned in
the
.cndot. interior space and a head portion extending outwardly from said hub;
.cndot. a hydraulic fluid being positioned between the piston and the
hydraulic plunger
such that movement of the piston moves the hydraulic plunger assembly;
.cndot. the hub having a main portion and an attachment portion, the
attachment
portion extending outwardly from the main portion;
.cndot.a rotor having a receiving portion, the attachment portion of the hub
being
insertable into the receiving portion of the rotor for coupling the hub to the
rotor;
a wheel having a central aperture, the attachment portion being insertable
through the aperture such that the wheel is positioned between the hub and the
rotor; and
.cndot.a valve in the hub for pressurizing said interior space of said hub
proximate said
piston whereby said piston urges said head portion of said plunger assembly
outwardly from said hub to abut said wheel whereby said wheel is engaged to
said rotor.
2. The vehicle wheel attachment system of claim 1, further comprising:
.cndot. the rotor includes a plurality of spaced detents extending outwardly
from the
rotor;
.cndot.the wheel having a plurality of spaced indents, each indent receiving
an
associated one of said spaced detents when said wheel is engaged to said rotor


10
whereby said wheel is fixedly coupled relative to said rotor such that said
wheel
rotates with said rotor.
3. The vehicle wheel attachment system of claim 1, further comprising:
.cndot. said attachment portion having a medial cylindrical portion and a
distal bracket
portion;
.cndot.a cone washer coupled to said medial cylindrical portion of said
attachment
portion such that said cone washer is positioned between said head portion of
said plunger and said rotor when said wheel is engaged to said rotor.
4. The vehicle wheel attachment system of claim 3, further comprising:
.cndot. said bracket portion having a plurality of arms extending outwardly
from a
central portion of the bracket portion;
.cndot. said receiving portion having a complimentary configuration whereby
said
bracket portion is insertable into said receiving portion; and
.cndot. wherein said bracket portion is rotatable within said receiving
portion such that
said arms abut an interior face of said rotor to prevent disengagement of said
hub from said rotor.
5. The vehicle wheel attachment system of claim 1, further comprising:
.cndot. a plurality of extension arms extending between and coupling together
said
interior portion and said head portion of said plunger assembly, each of said
extension arms extending through an associated slot in said hub.
6. The vehicle wheel attachment system of claim 1, further comprising:
.cndot. said rotor having a disc portion extending outwardly from an exterior
face of
said rotor;
.cndot. said head portion of said plunger assembly having a beveled outer
perimeter
edge; and

11
.cndot. said aperture in said wheel having a cylindrical first portion for
snugly receiving
said disc portion of said rotor and a second angled portion extending from
said
first portion for snugly receiving said beveled outer perimeter edge of said
head
portion for facilitating firm engagement of said wheel to said rotor.
7. The vehicle wheel attachment system of claim l, further comprising:
.cndot. said head portion of said plunger assembly having a central aperture;
and
.cndot. said attachment portion of said hub passing through said central
opening in said
head portion of said plunger assembly whereby said attachment portion of said
hub and said plunger assembly are positioned coaxially with respect to each
other.
8. The vehicle wheel attachment system of claim 1, further comprising:
.cndot. said interior space of said hub having a medial throat portion for
defining a first
chamber and a second chamber in said interior space;
.cndot. said piston having a cylinder and a rod extending outwardly from said
cylinder,
said cylinder being positioned in said first chamber and said rod extending
into
said throat portion of said interior space;
.cndot. said hub having an air vent extending between an outer surface of said
hub and
said first chamber of said interior space proximate said rod such that said
air
vent is adapted for permitting environmental communication between outside
air and said first chamber proximate said rod to permit free movement of said
cylinder in said first chamber.
9. The vehicle wheel attachment system of claim 8, further comprising:
.cndot. said rod having a locking groove, said locking groove extending around
said rod
perpendicular to a longitudinal axis of said rod; and
.cndot. said hub having a locking channel extending between said throat
portion and
said exterior surface of said hub, said locking channel being aligned with
said

12
locking groove when said interior space is pressurized to extended said
plunger
assembly whereby said hub couples said wheel to said rotor; and
.cndot. a locking member being insertable through said locking channel to
engage said
locking groove such that said piston is prevented from moving relative to said
hub for preventing disengagement of said wheel from said rotor upon loss of
pressure on said piston.
10. A vehicle wheel attachment system comprising:
.cndot. a hub having a hollow interior space;
.cndot. a piston positioned within the interior space of the hub;
.cndot. a hydraulic plunger assembly having an interior portion positioned in
the
interior space and a head portion extending outwardly from said hub;
.cndot. a hydraulic fluid being positioned between the piston and the
hydraulic plunger
such that movement of the piston moves the hydraulic plunger assembly;
.cndot. the hub having a main portion and an attachment portion, the
attachment
portion extending outwardly from the main portion;
.cndot. a rotor having a receiving portion, the attachment portion of the hub
being
insertable into the receiving portion of the rotor for coupling the hub to the
rotor;
.cndot. a wheel having a central aperture, the attachment portion being
insertable
through the aperture such that the wheel is positioned between the hub and the
rotor;
.cndot. a valve in the hub for pressurizing said interior space of said hub
proximate said
piston whereby said piston urges said head portion of said plunger assembly
outwardly from said hub to abut said wheel whereby said wheel is engaged to
said rotor;

13
.cndot. the rotor includes a plurality of spaced detents extending outwardly
from the
rotor;
.cndot. the wheel having a plurality of spaced indents, each indent receiving
an
associated one of said spaced detents when said wheel is engaged to said rotor
whereby said wheel is fixedly coupled relative to said rotor such that said
wheel
rotates with said rotor;
.cndot. said attachment portion having a medial cylindrical portion and a
distal bracket
portion;
.cndot. a cone washer coupled to said medial cylindrical portion of said
attachment
portion such that said cone washer is positioned between said head portion of
said plunger and said rotor when said wheel is engaged to said rotor;
.cndot. said bracket portion having a plurality of arms extending outwardly
from a
central portion of the bracket portion,
.cndot. said receiving portion having a complimentary configuration whereby
said
bracket portion is insertable into said receiving portion;
.cndot. wherein said bracket portion is rotatable within said receiving
portion such that
said arms abut an interior face of said rotor to prevent disengagement of said
hub from said rotor;
.cndot. a plurality of extension arms extending between and coupling together
said
interior portion and said head portion of said plunger assembly, each of said
extension arms extending through an associated slot in said hub;
.cndot. said rotor having a disc portion extending outwardly from an exterior
face of
said rotor;
.cndot. said head portion of said plunger assembly having a beveled outer
perimeter
edge;

14
.cndot. said aperture in said wheel having a cylindrical first portion for
snugly receiving
said disc portion of said rotor and an angled second portion extending from
said
first portion for snugly receiving said beveled outer perimeter edge of said
head
portion for facilitating firm engagement of said wheel to said rotor;
.cndot. said aperture in said wheel having an angled third portion extending
from said
first portion opposite said second portion;
.cndot. said rotor having an angled surface extending between said disc
portion and
said exterior face of said rotor, said angled third portion of said aperture
in said
wheel being for snugly receiving said angled surface of said rotor for
facilitating
firm engagement of said wheel to said rotor;
.cndot. said head portion of said plunger assembly having a central aperture;
.cndot. said attachment portion of said hub passing through said central
opening in said
head portion of said plunger assembly whereby said attachment portion of said
hub and said plunger assembly are positioned coaxially with respect to each
other;
.cndot. said interior space of said hub having a medial throat portion for
defining a first
chamber and a second chamber in said interior space;
.cndot. said piston having a cylinder and a rod extending outwardly from said
cylinder,
said cylinder being positioned in said first chamber and said rod extending
into
said throat portion of said interior space;
.cndot. said hub having an air vent extending between an outer surface of said
hub and
said first chamber of said interior space proximate said rod such that said
air
vent is adapted for permitting environmental communication between outside
air and said first chamber proximate said rod to permit free movement of said
cylinder in said first chamber;
.cndot. said rod having a locking groove, said locking groove extending around
said rod
perpendicular to a longitudinal axis of said rod;

15
.cndot. said hub having a locking channel extending between said throat
portion and
said exterior surface of said hub, said locking channel being aligned with
said
locking groove when said interior space is pressurized to extend said plunger
assembly whereby said hub couples said wheel to said rotor; and
.cndot. a locking member being insertable through said locking channel to
engage said
locking groove such that said piston is prevented from moving relative to said
hub for preventing disengagement of said wheel from said rotor upon loss of
pressure on said piston.
11. The vehicle wheel attachment system of claim 1, further comprising:
.cndot. said rotor having a disc portion extending outwardly from an exterior
face of
said rotor;
.cndot. said head portion of said plunger assembly having a beveled outer
perimeter
edge;
.cndot. said aperture in said wheel having a cylindrical first portion for
snugly receiving
said disc portion of said rotor and an angled second portion extending from
said
first portion for snugly receiving said beveled outer perimeter edge of said
head
portion for facilitating firm engagement of said wheel to said rotor;
.cndot. said aperture in said wheel having an angled third portion extending
from said
first portion opposite said second portion; and
.cndot. said rotor having an angled surface extending between said disc
portion and
said exterior face of said rotor, said angled third portion of said aperture
in said
wheel being for snugly receiving said angled surface of said rotor for
facilitating
firm engagement of said wheel to said rotor.
12. The vehicle wheel attachment system of claim 1, further comprising:


16
.cndot. a frictional material being bonded to said rotor for frictionally
engaging said
wheel whereby said wheel is fixedly coupled relative to said rotor such that
said
wheel rotates with said rotor.
13. A vehicle wheel attachment system comprising:
.cndot. a hub having a hollow interior space;
.cndot. a hydraulic plunger assembly having an interior portion positioned in
the
interior space and a head portion extending outwardly from said hub;
.cndot. a hydraulic fluid being insertable into said interior space such that
modification
of a volume of said hydraulic fluid in said interior space moves the hydraulic
plunger assembly;
.cndot. the hub having a main portion and an attachment portion, the
attachment
portion extending outwardly from the main portion;
.cndot. a rotor having a receiving portion, the attachment portion of the hub
being
insertable into the receiving portion of the rotor for coupling the hub to the
rotor;
.cndot. a wheel having a central aperture, the attachment portion being
insertable
through the aperture such that the wheel is positioned between the hub and the
rotor; and
.cndot. a valve in the hub extending into said interior space of said hub for
facilitating
selective modification of the volume of said hydraulic fluid in said interior
space for moving said plunger assembly outwardly from said hub to abut said
wheel whereby said wheel is engaged to said rotor.
14. The vehicle wheel attachment system of claim 13, further comprising:
.cndot. said rotor including a plurality of spaced detents extending outwardly
from the
rotor;

17
.cndot. said wheel having a plurality of spaced indents, each indent receiving
an
associated one of said spaced detents when said wheel is engaged to said rotor
whereby said wheel is fixedly coupled relative to said rotor such that said
wheel
rotates with said rotor.
15. The vehicle wheel attachment system of claim 13, further comprising:
.cndot. said attachment portion having a medial cylindrical portion and a
distal bracket
portion;
.cndot. a cone washer coupled to said medial cylindrical portion of said
attachment
portion such that said cone washer is positioned between said head portion of
said plunger and said rotor when said wheel is engaged to said rotor.
16. The vehicle wheel attachment system of claim 15, further comprising:
.cndot. said bracket portion having a plurality of arms extending outwardly
from a
central portion of the bracket portion;
.cndot. said receiving portion having a complimentary configuration whereby
said
bracket portion is insertable into said receiving portion; and
.cndot. wherein said bracket portion is rotatable within said receiving
portion such that
said arms abut an interior face of said rotor to prevent disengagement of said
hub from said rotor.
17. The vehicle wheel attachment system of claim 13, further comprising:
a plurality of extension arms extending between and coupling together said
interior portion and said head portion of said plunger assembly, each of said
extension arms extending through an associated slot in said hub.
18. The vehicle wheel attachment system of claim 13, further comprising:
.cndot. said rotor having a disc portion extending outwardly from an exterior
face of
said rotor;

18
.cndot. said head portion of said plunger assembly leaving a beveled outer
perimeter
edge; and
.cndot. said aperture in said wheel having a cylindrical first portion for
snugly receiving
said disc portion of said rotor and a second angled portion extending from
said
first portion for snugly receiving said beveled outer perimeter edge of said
head
portion for facilitating firm engagement of said wheel to said rotor.
19. The vehicle wheel attachment system of claim 13, further comprising:
.cndot. said head portion of said plunger assembly having a central aperture;
and
.cndot. said attachment portion of said hub passing through said central
opening in said
head portion of said plunger assembly whereby said attachment portion of said
hub and said plunger assembly are positioned coaxially with respect to each
other.
20. The vehicle wheel attachment system of claim 13, further comprising:
.cndot. said rotor having a disc portion extending outwardly from an exterior
face of
said rotor;
.cndot. said head portion of said plunger assembly having a beveled outer
perimeter
edge;
.cndot. said aperture in said wheel having a cylindrical first portion for
snugly receiving
said disc portion of said rotor and an angled second portion extending from
said
first portion for snugly receiving said beveled outer perimeter edge of said
head
portion for facilitating firm engagement of said wheel to said rotor;
.cndot. said aperture in said wheel having an angled third portion extending
from said
first portion opposite said second portion; and
.cndot. said rotor having an angled surface extending between said disc
portion and
said exterior face of said rotor, said angled third portion of said aperture
in said

19
wheel being for snugly receiving said angled surface of said rotor for
facilitating
firm engagement of said wheel to said rotor.

Description

Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.


CA 02428608 2003-05-12
1
VEHICLE 11VHEEL ~TTACHNIEIVT SYSTEM
FIELD OF THE INVENTION:
[0001 ] The present invention relates to vehicle wheel attachment devices and
more particularly pertains to a new vehicle wheel attachment system for
facilitating
hydraulic coupling of a vehicle wheel to a vehicle.
DESCRIPTION OF THE PRIOR ART:
[0002] The use of vehicle wheel attachment devices is known in the prior art.
More specifically, vehicle wheel attachment devices heretofore devised and
utilized are
known to consist basically of familiar, expected and obvious structural
configurations,
notwithstanding the myriad of designs encompassed by the crowded prior art
which
have been developed for the fulfillment of countless objectives and
requirements.
[0003] Known prior art includes U.S. P'at. Nos. 5,413,201; 5,431,485;
5,353,890; 5,097,702; 5,129,741; and 4,804,027.
[0004] While these devices fulfill their respective, particular objectives and
requirements, the aforementioned patents do not disclose a new vehicle wheel
attachment system. The inventive device includes a hub assembly having a
piston
hydraulically coupled to a plunger assembly. The hub assembly is passed
through a
wheel and attached to a rotor. The hub assembly is pressurized to extend the
plunger
assembly to clamp the wheel between the hub assembly and the rotor.
[0005] In these respects, the vehicle wheel attachment system according to the
present invention substantially departs from the conventional concepts and
designs of
the prior art, and in so doing provides an apparatus primarily developed for
the purpose
of facilitating hydraulic coupling of a vehicle wheel to a vehicle.

CA 02428608 2003-05-12
2
SUMMARY OF TFIE INVENTION:
[0006] In view of the foregoing disadvantages inherent in: the known types of
vehicle wheel attachment devices now present in the prior art, the present
invention
provides a new vehicle wheel attachment system construction wherein the same
can be
utilized for facilitating hydraulic coupling of a vehicle wheel to a vehicle.
[0007] The general purpose of the present invention, which will be described
subsequently in greater detail, is to provide a new vehicle wheel attachment
system
apparatus and method which has many of the advantages of the vehicle wheel
attachment devices mentioned heretofore and many novel features that result in
a new
vehicle wheel attachment system which is not anticipated, rendered obvious,
suggested,
or even implied by any of the prior art vehicle wheel attachment devices,
either alone
or in any combination thereof.
[0008] To attain this, the present invention generally comprises a hub
assembly
having a piston hydraulically coupled to a plunger assembly. The hub assembly
is
passed through a wheel and attached to a rotor. The hub assembly is
pressurized to
extend the plunger assembly to clamp the wheel between the hub assembly and
the
rotor.
[0009] It is another object of the present invention to provide a new vehicle
wheel attachment system that may be easily and efficiently manufactured and
marketed.
[0010] It is a further object of the present invention to provide a new
vehicle
wheel attachment system that is of a durable and reliable construction.
[0011] An even further object of the present invention i.s to provide a new
vehicle wheel attachment system which is susceptible of a low cost of
manufacture with
regard to both materials and labor, and which accordingly is then susceptible
of Iow
prices of sale to the consuming public, thereby making such vehicle wheel
attachment
system economically available to the buying public.

CA 02428608 2003-05-12
3
[0012] Still another object of the present invention is to provide a new
vehicle
wheel attachment system for facilitating hydraulic coupling of a vehicle wheel
to a
vehicle.
[0013] Yet another object of the present invention is to provide a new vehicle
wheel attachment system which includes a hub assembly having a piston
hydraulically
coupled to a plunger assembly. The hub assembly is passed through a wheel and
attached to a rotor. The hub assembly is pressurized to extend the plunger
assembly to
clamp the wheel between the hub assembly and the rotor.
[0014] Still yet another object of the present invention is to provide a new
vehicle wheel attachment system that facilitates changing a flat tire.
[0015] Even still another object of the present invention is to provide a new
vehicle wheel attachment system that provides strong, quick, and easily
achieved
attachment of a vehicle wheel to a vehicle.
[0016] These together with other objects of the invention, along with the
various features of novelty which characterize the invention, are pointed out
with
particularity in the claims annexed to and forming a part of this disclosure.
For a better
understanding of the invention, its operating advantages and the specific
objects
attained by its uses, reference should be made to the accompanying drawings
and
descriptive matter in which there are illustrated preferred embodiments of the
invention.
BRIEF DESCRIPTION OF T HE DRrI~INGS:
[0017] The invention will be better understood and objects other than those
set
forth above will become apparent when consideration is given to the following
detailed
description thereof. Such description makes reference to the annexed drawings
wherein:
[0018] FIG. 1 is a perspective view of a new vehicle wheel attachment system
according to the present invention.

CA 02428608 2006-03-16
4
[0019] FIG. 2 is a exploded view of the present invention.
[0020] FIG. 3 is a perspective view of an embodiment of the rotor of the
present
invention.
[0021 ] FIG. 4 is a cross-sectional view of the invention as shown in FIG. 2.
[0022] FIG. 5 is a cross-sectional view of the invention as shown in FIG. 1.
[0023] FIG. 6 is an exploded view of an alternate embodiment of the present
uwention.
[0024] FIG. 7 is a cross-sectional view of the invention as shown in FIG. 6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0025] With reference now to the drawings, and in particular to FIGS. 1
through
7 thereof, a new vehicle wheel attachment system embodying the principles and
concepts
of the present invention and generally designated by the reference numeral 10
will be
described.
[0026] As best illustrated in FIGS. 1 through 7, the vehicle wheel attachment
system 10 generally comprises a hub assembly 12, a rotor 13, and a wheel 11.
Hub
assembly 12 is passed through wheel 11 and hydraulically attaches to rotor 13
to clamp
wheel 1 1 between hub assembly 12 and rotor 13.
[0027 Hub assembly 12 includes a hub 15 having an interior space 17. A piston
14 is positioned within interior space 17 of hub 15.
[0028] A hydraulic plunger assembly l6 includes an interior portion l 8
positioned in interior space 17 and a head portion 19 extending outwardly from
hub 15.
A hydraulic fluid 20 is positioned in interior space 17 between piston 14 and
hydraulic
plunger assembly 16 such that IT10Ve1llellt of piston 14 moves hydraulic
plunger assembly
16.

CA 02428608 2006-03-16
[0029] Hub assembly 12 includes a main portion 22 and an attachment portion
24 with attachment portion 24 extending outwardly from main portion 22.
[0030] Rotor 13 includes a receiving portion 26. Attachment portion 24 of hub
assembly 12 is insertable into receiving portion 26 of rotor 13 for coupling
hub assembly
5 12 to rotor 13. Wheel 1 1 includes a central aperture 28. Attachment portion
24 is
insertable through aperture 28 such that wheel 11 is positioned between hub 15
and rotor
1 3.
[0031 ) A valve 29 is included in hub assembly 12 for pressurizing interior
space
17 of hub 15 proximate piston 14 whereby piston 14 urges head portion 19 of
plunger
assembly 16 outwardly from hub I S t0 abLtt wheel 1 1 whereby wheel 1 1 is
engaged to
rotor 13.
[0032] In an embodiment. rotor 13 includes a plurality of spaced detents 30
extending OLltWa1'dly fI'0111 1'Otol' 13 and wheel 1 1 includes a plurality of
spaced indents
32. Each indent 32 is positioned for receiving an associated one of spaced
detests 30
1 > when wheel 1 1 is engaged to rotor 13. Thus. wheel l 1 is fixedly coupled
relative to rotor
13 such that wheel 1 1 rotates with rotor 13. In au embodiment, a disc of
frictional
material 68 is bonded to an exterior face 45 of rotor 13 for the same purpose
as use of
indents 32 and detests 30.
[0033] The attachment portion 24 includes a medial cylindrical portion 34 and
a
distal bracket portion 36. A spring cone washer 38 is attached coaxially to
medial
cylindrical portion 34 of attachment portion 24 such that cone washer 38 is
positioned
between head portion 19 of plunger 16 and rotor 13 when wheel 1 1 is engaged
to rotor
1 3. Cone washer 38 serves to push hub 15 outwardly from rotor 13 upon
depressurization proximate piston 14 to facilitate removal of hub 15 from
rotor 13 and
thus facilitate removal of wheel 1 1.
[0034] Bracket portion 36 includes a plurality of arms 33 extending outwardly
from a central portion 35 of bracket portion 36. Receiving portion 26 has a
neck portion
37 of complimentary configuration to bracket portion 36 whereby bracket
portion 36 is
insertable into the receiving portion 26 through the heck portion 37.
[0035] Bracket portion 36 is rotatable within receiving portion 26 such that
arms

CA 02428608 2006-03-16
6
33 abut an interior face 41 of rotor 13 to prevent disengagement of hub
assembly 12
from rotor 13.
[0036] A plurality of extension arms 43 extend between and couple together
interior portion I 8 of plunger assembly 16 and head portion 19 of plunger
assembly 16.
Each of extension arms 43 extends through an associated slot 44 in IlLlb I S.
[0037] Rotor 13 includes a disc portion 4G extending outwardly from the
exterior
face 45 of rotor 13. Head portion 19 of plunger assembly 16 includes a beveled
outer
perimeter edge 48. Correspondingly, aperture 28 in wheel 11 includes a
cylindrical first
portion 47 for snugly receiving disc portion 46 of rotor I 3 and an angled
second portion
49 extending from first portion 47 for snugly receiving beveled outer
perimeter edge 48
of head portion 19 to facilitate firm engagement of wheel I 1 to rotor 13.
Aperture 28 in
wheel I 1 further includes an angled third portion 72 extending from first
portion 47
opposite angled second portion 49. Angled third portion 72 is designed for
abutting an
angled flat surface 74 extending between disc portion 46 and exterior face 45
of rotor
13.
[0038] Head portion 19 of plunger assembly 16 includes a central aperture 51
and attachment portion 24 of hub assembly 12 passes through central aperture
51 in head
portion 19 of plunger assembly 16 such that attachment portion 24 of hub
assembly 12
and plunger assembly 16 are positioned coaxially with respect to each other.
[0039] Interior space 17 of hub 15 includes a medial throat portion 52 for
defining a first chamber 53 and a second chamber 55 in interior space 17.
[0040] Piston 14 has a cylinder 54 and a rod 56 extending outwardly from
cylinder 54. Cylinder 54 is positioned in first chamber 53 and rod 56 extends
into throat
portion 52 of interior space 17 to provide enhanced pressure to hydraulic
fluid 20 for
acting on plunger assembly 16.
[0041 ] To permit movement of piston 14 within first chamber 53, the hub 15
includes an air vent 57 extending between an outer surface 58 of hub 15 and
first
chamber 5 3 of interior space 17 proximate rod 56.
[0042] In an embodiment, rod 56 includes a locking groove 62 extending around
rod 56 perpendicular to a longitudinal axis of rod 56. Hub I 5 includes a
locking channel

CA 02428608 2006-03-16
7
64 extending between throat portion 52 and the exterior surface of hub 15.
Locking
channel 64 is aligned with locking groove 62 when interior space 17 is
pressurized
proximate piston 14 to extend plunger assembly 16 such that hub assembly 12
couples
wheel I I to rotor 13. A locking member 66 is insertable through locking
channel 64 to
engage locking groove 62 such that piston 14 is prevented from moving relative
to hub
for preventing disengagement of wheel 11 from rotor I 3 upon loss of pressure
on
piston 14.
[0043] A shown in FIGS. 6 and 7, a single plunger assembly 16' having an
interior portion 18' and a head portion 19' may be positioned in interior
space 1 T of a
10 hub assembly 12' without the need for piston 14. The structure of plunger
assembly 16' is
essentially equivalent to that of plunger assembly 16. Valve 29' leads
directly into
interior space 17' for permitting introduction and extraction of hydraulic
fluid 20 for
moving the plunger assembly 16'.
[0044] It is further contemplated that all structural components previously
15 discussed and not directly related or required for use of the piston 14 and
plunger
assembly 16, may be employed for use in combination with the single plunger
embodiment incorporating plunger assembly 16'. For example, frictional
material disc 68
and cone washer 38 may both be utilized as described above in various
embodiments
with or without using piston 14.
[0045] With respect to the above description then, it is to be realized that
the
Optlllll1117 dimensional relationships for the parts of the invention, to
include variations in
size, materials, shape, form, function and manner of operation, assembly and
use, are
deemed readily apparent and obvious to one skilled in the art, and all
equivalent
relationships to those illustrated in the drawings and described in the
specification are

CA 02428608 2003-05-12
intended to be encompassed by the present invention.
[0046] Therefore, the foregoing is considered as illustrative only of the
principles of the invention. Further, since numerous modifications and changes
will
readily occur to those skilled in the art, it is not desired to limit the
invention to the
j exact construction and operation shown and described, and accordingly, all
suitable
modifications and equivalents may be resorted to, falling within the scope of
the
invention.
[0047) Throughout this specification and the claims which follow, unless the
context requires otherwise, the word "comprise", anal variations such as
"comprises"
or "comprising", will be understood to imply the inclusion of a stated integer
or step or
group of integers or steps but not to the exclusion of any other integer or
step or group
of integers or steps.
[0048] Moreover, the word "substantially" when used with an adjective or
adverb is intended to enhance the scope of the particular characteristic;
e.g.,
1 j substantially planar is intended to mean planar, nearly planar and/or
exhibiting
characteristics associated with a planar element.
[0049] Moreover, use of the terms "he", ''him", or "his", is not intended to
be
specifically directed to persons of the masculine gender, and could easily be
read as
"she", "her", or "hers", respectively.

Dessin représentatif
Une figure unique qui représente un dessin illustrant l'invention.
États administratifs

2024-08-01 : Dans le cadre de la transition vers les Brevets de nouvelle génération (BNG), la base de données sur les brevets canadiens (BDBC) contient désormais un Historique d'événement plus détaillé, qui reproduit le Journal des événements de notre nouvelle solution interne.

Veuillez noter que les événements débutant par « Inactive : » se réfèrent à des événements qui ne sont plus utilisés dans notre nouvelle solution interne.

Pour une meilleure compréhension de l'état de la demande ou brevet qui figure sur cette page, la rubrique Mise en garde , et les descriptions de Brevet , Historique d'événement , Taxes périodiques et Historique des paiements devraient être consultées.

Historique d'événement

Description Date
Le délai pour l'annulation est expiré 2019-05-13
Lettre envoyée 2018-05-14
Inactive : Regroupement d'agents 2015-11-05
Inactive : TME en retard traitée 2014-07-21
Lettre envoyée 2014-05-12
Déclaration du statut de petite entité jugée conforme 2007-10-31
Requête visant une déclaration du statut de petite entité reçue 2007-10-31
Accordé par délivrance 2007-05-08
Inactive : Page couverture publiée 2007-05-07
Préoctroi 2007-02-16
Inactive : Taxe finale reçue 2007-02-16
Un avis d'acceptation est envoyé 2006-12-06
Lettre envoyée 2006-12-06
Un avis d'acceptation est envoyé 2006-12-06
Inactive : Approuvée aux fins d'acceptation (AFA) 2006-11-21
Modification reçue - modification volontaire 2006-03-16
Inactive : CIB de MCD 2006-03-12
Inactive : CIB de MCD 2006-03-12
Inactive : CIB de MCD 2006-03-12
Inactive : Lettre officielle 2006-02-09
Exigences relatives à la nomination d'un agent - jugée conforme 2006-02-09
Exigences relatives à la révocation de la nomination d'un agent - jugée conforme 2006-02-09
Inactive : Lettre officielle 2006-02-09
Demande visant la révocation de la nomination d'un agent 2006-02-03
Demande visant la nomination d'un agent 2006-02-03
Inactive : Dem. de l'examinateur par.30(2) Règles 2005-09-19
Inactive : Regroupement d'agents 2003-11-03
Lettre envoyée 2003-09-15
Demande publiée (accessible au public) 2003-08-11
Inactive : Page couverture publiée 2003-08-10
Inactive : Transfert individuel 2003-08-05
Inactive : CIB en 1re position 2003-06-26
Inactive : Lettre officielle 2003-06-17
Inactive : Certificat de dépôt - RE (Anglais) 2003-06-11
Exigences de dépôt - jugé conforme 2003-06-11
Lettre envoyée 2003-06-11
Demande reçue - nationale ordinaire 2003-06-11
Modification reçue - modification volontaire 2003-05-12
Exigences pour une requête d'examen - jugée conforme 2003-05-12
Toutes les exigences pour l'examen - jugée conforme 2003-05-12

Historique d'abandonnement

Il n'y a pas d'historique d'abandonnement

Taxes périodiques

Le dernier paiement a été reçu le 2007-02-16

Avis : Si le paiement en totalité n'a pas été reçu au plus tard à la date indiquée, une taxe supplémentaire peut être imposée, soit une des taxes suivantes :

  • taxe de rétablissement ;
  • taxe pour paiement en souffrance ; ou
  • taxe additionnelle pour le renversement d'une péremption réputée.

Veuillez vous référer à la page web des taxes sur les brevets de l'OPIC pour voir tous les montants actuels des taxes.

Historique des taxes

Type de taxes Anniversaire Échéance Date payée
Requête d'examen - petite 2003-05-12
Taxe pour le dépôt - petite 2003-05-12
Enregistrement d'un document 2003-08-05
TM (demande, 2e anniv.) - petite 02 2005-05-12 2005-03-30
TM (demande, 3e anniv.) - petite 03 2006-05-12 2006-03-10
TM (demande, 4e anniv.) - petite 04 2007-05-14 2007-02-16
Taxe finale - petite 2007-02-16
TM (brevet, 5e anniv.) - petite 2008-05-12 2008-05-07
Annulation de la péremption réputée 2014-05-12 2009-05-20
TM (brevet, 6e anniv.) - petite 2009-05-12 2009-05-20
TM (brevet, 7e anniv.) - petite 2010-05-12 2010-05-10
TM (brevet, 8e anniv.) - petite 2011-05-12 2011-05-12
TM (brevet, 9e anniv.) - petite 2012-05-14 2012-03-07
TM (brevet, 10e anniv.) - petite 2013-05-13 2013-04-23
TM (brevet, 11e anniv.) - petite 2014-05-12 2014-07-21
Annulation de la péremption réputée 2014-05-12 2014-07-21
TM (brevet, 12e anniv.) - petite 2015-05-12 2015-05-08
TM (brevet, 13e anniv.) - petite 2016-05-12 2016-04-15
TM (brevet, 14e anniv.) - petite 2017-05-12 2016-11-15
Titulaires au dossier

Les titulaires actuels et antérieures au dossier sont affichés en ordre alphabétique.

Titulaires actuels au dossier
AVE MARIA INC.
Titulaires antérieures au dossier
AUGUSTO H. MARTINEZ
Les propriétaires antérieurs qui ne figurent pas dans la liste des « Propriétaires au dossier » apparaîtront dans d'autres documents au dossier.
Documents

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Description du
Document 
Date
(aaaa-mm-jj) 
Nombre de pages   Taille de l'image (Ko) 
Description 2003-05-12 8 424
Abrégé 2003-05-12 1 16
Revendications 2003-05-12 11 475
Dessins 2003-05-12 3 141
Dessin représentatif 2003-07-10 1 16
Page couverture 2003-07-21 1 40
Description 2006-03-16 8 372
Page couverture 2007-04-24 1 41
Accusé de réception de la requête d'examen 2003-06-11 1 173
Certificat de dépôt (anglais) 2003-06-11 1 158
Courtoisie - Certificat d'enregistrement (document(s) connexe(s)) 2003-09-15 1 106
Rappel de taxe de maintien due 2005-01-13 1 109
Avis du commissaire - Demande jugée acceptable 2006-12-06 1 163
Avis concernant la taxe de maintien 2014-06-23 1 170
Avis concernant la taxe de maintien 2014-06-23 1 170
Quittance d'un paiement en retard 2014-07-21 1 165
Avis concernant la taxe de maintien 2018-06-26 1 180
Avis concernant la taxe de maintien 2018-06-26 1 181
Correspondance 2003-06-11 1 11
Taxes 2005-03-30 1 26
Correspondance 2006-02-03 2 46
Correspondance 2006-02-09 1 13
Correspondance 2006-02-09 1 17
Taxes 2006-03-10 1 27
Correspondance 2007-02-16 1 34
Taxes 2007-02-16 1 27
Correspondance 2007-10-31 2 69
Taxes 2008-05-07 1 28
Taxes 2009-05-20 1 200