US3858948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt track for vehicles
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1973-04-30
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Granted: 1975-01-07
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Expires: 1993-04-30
Abstract
Abstract A flexible endless belt for use on track vehicle with the belt having an inner surface and an opposite outer ground-contacting surface and including a plurality of stiffening members embedded in the body of the belt extending transversely across the width of the belt at least substantially at right angles to the longitudinal direction thereof and disposed in spaced apart planes with respect to the longitudinal centerplane of the belt. Each stiffening member is comprised of a continuous essentially non-compressible, non-extendable monofilament of a synthetic material to impart transverse rigidity to the belt. The stiffening member, for example, may be a monofilament nylon cord.
Inventors
- 👤 David W Johnson
- 👤 Ralph W Kell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:12
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/244
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
122 words
A flexible endless belt of reinforced elastomeric material for use on a track vehicle, said belt comprising a body having an inner surface and an opposite outer ground-contacting surface and including a plurality of stiffening members embedded therein extending transversely across the width of the belt at least substantially at right angles to the longitudinal direction of the belt and disposed in at least two spaced apart planes with respect to the longitudinal centerplane of the belt, each said stiffening member comprised of a continuous non-compressible monofilament of a synthetic material to impart transverse rigidity to the belt, said monofilament throughout at least a majority of its length being in direct contact with the elastomeric material of the body of the belt.
Claim 2
Dependent Claim
122 words
A flexible endless belt of reinforced elastomeric material for use on a track vehicle, said belt comprising a body having an inner surface and an opposite outer ground-contacting surface and including a plurality of stiffening members embedded therein extending transversely across the width of the belt at least substantially at right angles to the longitudinal direction of the belt and disposed in at least two spaced apart planes with respect to the longitudinal centerplane of the belt, each said stiffening member comprised of a continuous non-compressible monofilament of a synthetic material to impart transverse rigidity to the belt, said monofilament throughout at least a majority of its length being in direct contact with the elastomeric material of the body of the belt.
Claim 3
Dependent Claim
17 words
The belt as claimed in claim 1 comprising two spaced generally parallel rows of said stiffening members.
Claim 4
Dependent Claim
92 words
The belt as claimed in claim 1 wherein the ground-contacting surface includes a plurality of raised corrugations extending transversely of the belt to provide traction and the belt includes at least one row of said stiffening members embedded in said body with the stiffening members being spaced from the ground-contacting surface and substantially following the configuration thereof with some of the stiffening members following the configuration of the raised corrugations so that said members are thereby disposed in two or more separate planes with respect to the longitudinal centerplane of the belt.
Claim 5
Dependent Claim
27 words
The belt as claimed in claim 1 wherein said stiffening members are comprised of a thermoplastic material selected from the group consisting of nylon, polyester or polypropylene.
Claim 6
Dependent Claim
19 words
The belt as claimed in claim 1 wherein each said stiffening member is comprised of a nylon monofilament cord.
Claim 7
Dependent Claim
24 words
The belt as claimed in claim 5 wherein said stiffening members have a denier in the range of from about 1,100 to about 27,600.
Claim 8
Dependent Claim
130 words
The belt as claimed in claim 1 wherein said body includes at least one layer of tire cord fabric embedded therein, said fabric comprised of a plurality of said stiffening members extending across the belt in a generally parallel relationship and a plurality of fabric elements extending longitudinally of the belt weaving said stiffening members together, said elements having a thinner cross section than said stiffening members and disposed at generally right angles to said stiffening members with each adjacent element being spaced at a greater distance apart than each adjacent stiffening member so that the majority of the outer peripheral surface of each said stiffening member is free of contact with said elements and is available for direct contact with the elastomeric material of the body of the belt.
Claim 9
Dependent Claim
19 words
The belt as claimed in claim 7 wherein said fabric elements are composed of a high strength synthetic yarn.
Claim 10
Dependent Claim
29 words
The belt as claimed in claim 2 wherein saiD body includes a tension-resisting section extending longitudinally of the belt and disposed between said parallel rows of said stiffening members.
Claim 11
Dependent Claim
136 words
A belt track for a track-laying vehicle, said belt track comprising a body of flexible elastomeric material having an outer ground-engaging cover to provide traction and an opposite drive-engaging cover to contact the vehicle drive means and including a plurality of stiffening members embedded therein extending transversely across the width of the belt track at least substantially at right angles to the longitudinal direction of the belt and disposed in two or more distinctly separate planes with respect to the longitudinal centerplane of the belt track, each said stiffening member comprised of a continuous essentially non-compressible, nonextendable monofilament of a synthetic textile material to impart transverse rigidity to the belt track, said monofilament throughout at least a majority of its length being in direct contact with the elastomeric material of the body of the belt track.
Claim 12
Dependent Claim
136 words
A belt track for a track-laying vehicle, said belt track comprising a body of flexible elastomeric material having an outer ground-engaging cover to provide traction and an opposite drive-engaging cover to contact the vehicle drive means and including a plurality of stiffening members embedded therein extending transversely across the width of the belt track at least substantially at right angles to the longitudinal direction of the belt and disposed in two or more distinctly separate planes with respect to the longitudinal centerplane of the belt track, each said stiffening member comprised of a continuous essentially non-compressible, nonextendable monofilament of a synthetic textile material to impart transverse rigidity to the belt track, said monofilament throughout at least a majority of its length being in direct contact with the elastomeric material of the body of the belt track.
Claim 13
Dependent Claim
18 words
The belt track as claimed in claim 10 comprising two spaced generally parallel rows of said stiffening members.
Claim 14
Dependent Claim
95 words
The belt track as claimed in claim 10 wherein the ground-engaging cover includes a plurality of traction cleats extending transversely of the belt and the belt includes at least one row of said stiffening members embedded in said body with the stiffening members being spaced from the outer surface of the ground-engaging cover and substantially following the configuration thereof with some of the stiffening members following the configuration of the traction cleats so that said members are thereby disposed in two or more separate planes with respect to the longitudinal centerplane of the belt track.
Claim 15
Dependent Claim
26 words
The belt track as claimed in claim 10 wherein said stiffening members are comprised of a material selected from the group consisting of nylon or polyester.
Claim 16
Dependent Claim
20 words
The belt track as claimed in claim 10 wherein each said stiffening member is comprised of a nylon monofilament cord.
Claim 17
Dependent Claim
25 words
The belt track as claimed in claim 10 wherein said stiffening members have a denier in the range of from about 4,400 to about 17,600.
Claim 18
Dependent Claim
138 words
The belt track as claimed in claim 10 wherein said body includes at least one layer of tire cord fabric embedded therein in which said fabric is comprised of a plurality of said stiffening members extending across the belt track in a generally parallel relationship and a plurality of fabric elements extending longitudinally of the belt track and interwoven with said stiffening members, said elements having a thinner cross section than said stiffening members and disposed at generally right angles to said stiffening members with each adjacent element being spaced at a greater distance apart than each adjacent stiffening member so that the majority of the outer peripheral surface of each said stiffening member is free of contact with said elements and is available for direct contact with the elastomeric material of the body of the belt track.
Claim 19
Dependent Claim
33 words
The belt track as claimed in claim 16 wherein said fabric elements are comprised of a high strength synthetic yarn to provide improved tear resistance in a direction parallel to said stiffening members.
Claim 20
Dependent Claim
31 words
The belt track as claimed in claim 11 wherein said body includes a tension-resisting section extending longitudinally of the belt track and disposed between said parallel rows of said stiffening members.
Claim 21
Dependent Claim
30 words
The belt track as claimed in claim 10 wherein said body includes at least one row of sprocket teethreceiving openings therein for engaging sprocket teeth of a sprocket drive wheel.
Claim 22
Dependent Claim
31 words
The belt track as claimed in claim 10 wherein the drive-engaging cover is comprised of a plurality of lugs formed integrally therewith for contact with a sprocket of the vehicle drive.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |