Patent US3680926A successfully refreshed from Google Patents.
US3680926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless cleated track
Assignee: Outboard Marine Corp
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Filing: 1970-05-08
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Granted: 1972-08-01
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Expires: 1990-05-08
Abstract
Abstract Disclosed herein is an endless track having a number of belts formed from strips of flexible material having tapered ends and supported for movement in a parallel spaced relation by traction bars having drive sections offset into the space between the belts. The tapered ends of the belts are spliced by a number of the traction bars.
Inventors
- 👤 Robert L Trapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:55
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1664
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
An endless track comprising a plurality of spaced and transversely extending traction bars each having a central offset drive section, a pair of flexible belts secured to said traction bars such that said traction bars extend substantially at right angles to the length of said belts and along the outside surface thereof for substantially the entire width of said belts, and such that said belts are located in spaced parallel relation to each other outwardly of said offset drive sections, said belts each including adjacently located diagonally cut substantially abutting ends secured to at least two of said traction bars, said belts having along the outside thereof longitudinally extending and outwardly projecting ribs.
Claim 2
Dependent Claim
113 words
An endless track comprising a plurality of spaced and transversely extending traction bars each having a central offset drive section, a pair of flexible belts secured to said traction bars such that said traction bars extend substantially at right angles to the length of said belts and along the outside surface thereof for substantially the entire width of said belts, and such that said belts are located in spaced parallel relation to each other outwardly of said offset drive sections, said belts each including adjacently located diagonally cut substantially abutting ends secured to at least two of said traction bars, said belts having along the outside thereof longitudinally extending and outwardly projecting ribs.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |