Patent US4056288A successfully refreshed from Google Patents.
US4056288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless track for crawler vehicles
Assignee: Caterpillar Inc
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Filing: 1976-03-01
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Granted: 1977-11-01
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Expires: 1996-03-01
Abstract
Abstract An endless track for a track-type vehicle such as a crawler vehicle or the like, including an endless, tire-like, flexible carcass including a fluid receiving chamber that is at least partially collapsible, the chamber being defined by at least two cells arranged in substantially side-by-side orientation and extending about the periphery of the carcass. The cells have substantially equal cross sections and the carcass is provided with irregularities on its interior and exterior surfaces. An endless, flexible, grouser carrying belt is disposed about the exterior surface and secured thereto in interlocked relation by the surface irregularities. A plurality of grousers are located about the periphery of the grouser-carrying belt and are secured thereto and extend outwardly from the exterior surface thereof. An endless, flexible, shield-carrying belt is disposed inwardly of the carcass and is secured thereto on the interior surface of the carcass in interlocked relation by the surface irregularities. A plurality of metal shield plates are secured to the shield-carrier belt on its interior surface protecting the belt from wear upon disposition of the track on the crawler vehicle. A plurality of inwardly directed lugs are carried by the shield-carrying belt and are adapted for registration and engagement with the sprockets on a track laying vehicle.
Inventors
- 👤 Robert N. Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/247
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
An endless track for a track laying vehicle such as a crawler vehicle or the like, comprising: a first endless, flexible belt having metal grousers secured about the periphery thereof and directed outwardly from the exterior surface thereof; an endless, flexible, collapsible carcass including a fluid receiving chamber having an exterior surface removably secured to the interior surface of said first endless belt; and a second endless, flexible belt having an exterior surface removably secured to the interior surface of said carcass and a plurality of sprocket engaging lugs directed inwardly from the interior surface thereof; said belts and said carcass being constructed and arranged to permit disassembly when said carcass is collapsed and to preclude disassembly when installed on a crawler vehicle or the like and when said carcass is filled with fluid.
Claim 2
Dependent Claim
134 words
An endless track for a track laying vehicle such as a crawler vehicle or the like, comprising: a first endless, flexible belt having metal grousers secured about the periphery thereof and directed outwardly from the exterior surface thereof; an endless, flexible, collapsible carcass including a fluid receiving chamber having an exterior surface removably secured to the interior surface of said first endless belt; and a second endless, flexible belt having an exterior surface removably secured to the interior surface of said carcass and a plurality of sprocket engaging lugs directed inwardly from the interior surface thereof; said belts and said carcass being constructed and arranged to permit disassembly when said carcass is collapsed and to preclude disassembly when installed on a crawler vehicle or the like and when said carcass is filled with fluid.
Claim 3
Dependent Claim
31 words
The endless track of claim 1 further including a series of protective, metal plates secured to the interior surface of said second belt to act as a wear absorbing shield therefor.
Claim 4
Dependent Claim
22 words
The endless track of claim 1 wherein interlocking formations are disposed on said belts and said carcass at the respective interfaces thereof.
Claim 5
Dependent Claim
52 words
The endless track of claim 1 wherein each said endless belt is formed of two belt members sandwiching mounting plates, the mounting plates on said first endless belt mounting said grousers and the mounting plates on said second endless belt mounting shield plates on the interior surface of said second endless belt.
Claim 6
Dependent Claim
29 words
The endless track of claim 4 wherein at least the belt member in each of said endless belts remote from said carcass includes means for substantially precluding peripheral enlargement.
Claim 7
Dependent Claim
23 words
The endless track of claim 1 wherein said fluid chamber comprises a plurality of side-by-side cells extending about the periphery of said carcass.
Claim 8
Dependent Claim
204 words
An endless track for a track laying vehicle, such as a crawler vehicle or the like, comprising: an endless, flexible carcass including a fluid receiving chamber that is at least partially collapsible, said fluid receiving chamber being defined by at least two cells arranged in substantially side-by-side orientation and extending about the periphery of the carcass, said cells having substantially equal cross sections, said carcass being provided with irregularities on its interior and exterior surfaces; an endless, flexible, grouser-carrying belt disposed about the exterior surface of said carcass and secured thereto in interlocked relation by said surface irregularities; a plurality of grousers extending about the periphery of said grouser-carrying belt and secured thereto and extending outwardly from the exterior surface thereof; an endless, flexible, shield-carrying belt inwardly of said carcass and secured to the interior surface thereof in interlocked relation by said surface irregularities; a plurality of metal shield plates secured to said shield-carrying belt on the interior surface thereof for protecting said belt from wear upon disposition of said track on a crawler vehicle or the like; and a plurality of inwardly directed lugs carried by said shield-carrying belt and adapted for registration and engagement with the sprockets on a track laying vehicle.
Claim 9
Dependent Claim
204 words
An endless track for a track laying vehicle, such as a crawler vehicle or the like, comprising: an endless, flexible carcass including a fluid receiving chamber that is at least partially collapsible, said fluid receiving chamber being defined by at least two cells arranged in substantially side-by-side orientation and extending about the periphery of the carcass, said cells having substantially equal cross sections, said carcass being provided with irregularities on its interior and exterior surfaces; an endless, flexible, grouser-carrying belt disposed about the exterior surface of said carcass and secured thereto in interlocked relation by said surface irregularities; a plurality of grousers extending about the periphery of said grouser-carrying belt and secured thereto and extending outwardly from the exterior surface thereof; an endless, flexible, shield-carrying belt inwardly of said carcass and secured to the interior surface thereof in interlocked relation by said surface irregularities; a plurality of metal shield plates secured to said shield-carrying belt on the interior surface thereof for protecting said belt from wear upon disposition of said track on a crawler vehicle or the like; and a plurality of inwardly directed lugs carried by said shield-carrying belt and adapted for registration and engagement with the sprockets on a track laying vehicle.
Claim 10
Dependent Claim
45 words
The endless track of claim 7 wherein each of said belts includes peripheral reinforcement for strengthening the associated belt and for precluding peripheral enlargement to ensure that said belts will be secured to said carcass when said carcass is not in a partially collapsed state.
Claim 11
Dependent Claim
56 words
The endless track of claim 7 further including metal brackets extending through each of said belts substantially parallel to the exterior surfaces thereof; the metal brackets extending through said grouser-carrying belt securing said grousers to said grouser-carrying belt and the brackets extending through said shield-carrying belt securing said shields and said lugs to said shield-carrying belt.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |