US3853359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle track
Assignee: Foremost International Industries Ltd
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Filing: 1973-10-01
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Granted: 1974-12-10
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Expires: 1993-10-01
Abstract
Abstract A vehicle track of the type consisting of a pair of continuous, spaced, parallel rubber belts and a plurality of transverse grouser bar assemblies secured to the belts. The grouser bar assemblies are disposed at spaced intervals along the track so that sections of the belts are exposed between the assemblies. In order to protect the outside edges of the belts between the grouser bar assemblies, rigid rods are fixed to the opposite outer ends of each grouser bar assembly the rods extending in the longitudinal direction of the track and being closely spaced in the longitudinal direction so as to provide a substantially continuous barrier against sharp rocks, stumps and other debris engaging the outside edges of the belts.
Inventors
- 👤 A Pusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:28
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
A vehicle track comprising a pair of spaced, parallel, flexible belts defining outer ground engaging surfaces, inner surfaces and opposed longitudinally extending outside edges of said track, a plurality of transverse grouser bar assemblies at spaced intervals along said belts and each including an outer grouser bar member engaging said ground engaging surfaces of said belts, a track guide member engaging said inner surfaces of said belts and connecting means securing said members together with said belts clamped therebetween, at least one of said members extending the full width of the track and having opposite end portions terminating adjacent said outside edges of the track, and a pair of rigid members associated with each grouser bar assembly, the pair of rigid members being fixed one each to said opposite end portions and extending substantially perpendicular to the grouser bar assembly immediately outside of said outside edges, the rigid members of adjacent grouser bar assemblies being closely spaced in the longitudinal direction of the track along each side of the track so as to provide a substantially continuous edge protector for the belts.
Claim 2
Dependent Claim
182 words
A vehicle track comprising a pair of spaced, parallel, flexible belts defining outer ground engaging surfaces, inner surfaces and opposed longitudinally extending outside edges of said track, a plurality of transverse grouser bar assemblies at spaced intervals along said belts and each including an outer grouser bar member engaging said ground engaging surfaces of said belts, a track guide member engaging said inner surfaces of said belts and connecting means securing said members together with said belts clamped therebetween, at least one of said members extending the full width of the track and having opposite end portions terminating adjacent said outside edges of the track, and a pair of rigid members associated with each grouser bar assembly, the pair of rigid members being fixed one each to said opposite end portions and extending substantially perpendicular to the grouser bar assembly immediately outside of said outside edges, the rigid members of adjacent grouser bar assemblies being closely spaced in the longitudinal direction of the track along each side of the track so as to provide a substantially continuous edge protector for the belts.
Claim 3
Dependent Claim
22 words
A vehicle track as defined in claim 1, wherein the rigid member is disposed in substantially the same plane as the belts.
Claim 4
Dependent Claim
66 words
A vehicle track as defined in claim 1, wherein said grouser bar member and track guide member both have opposite end portions projecting slightly outward from the side edges of said belts so as to define spaces therebetween contiguous with the outside edges of the track, the pair of rigid members extending through said spaces and being disposed substantially in the same plane as the belts.
Claim 5
Dependent Claim
25 words
A vehicle track as defined in claim 1, wherein the rigid member is a rod of circular cross section welded to said track guide member.
Claim 6
Dependent Claim
44 words
A vehicle track as defined in claim 1, wherein each rigid member is an elongated member substantially equal in length to the spacing of said grouser bar assemblies and being connected at its mid-point to one of said grouser bar and track guide members.
Claim 7
Dependent Claim
52 words
A vehicle track as defined in claim 1, wherein each rigid member is an elongated member connected substantially at its mid-point to one of said grouser bar and track guide members, said elongated member curving inwardly of the track relative to the plane of said outer ground engaging surfaces of the belts.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |