US3997110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-slipping accessory for traction wheel
Assignee: Individual
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Filing: 1975-04-28
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Granted: 1976-12-14
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Expires: 1995-04-28
Abstract
Abstract An accessory adapted to be wedged under a traction wheel of a vehicle to allow production of traction upon rotation of that wheel. This anti-slipping accessory is characterized by cleats laterally offset from each other transversely of the accessory to preserve the tractive efficiency even though the supporting surface has been plowed by the cleats; and also, by having a leading end allowing convenient wedging under a roadwheel and gripping of its tire. This accessory includes two converging strips of bendable material, crossbars extending transversely of these strips and simply secured thereto, cleats projecting endwise from one face of these strips and laterally offset from each other transversely of the strips, a crossbar at the leading end adapted to engage notches of the tire of the roadwheel, a crossbar at the trailing end adapted to minimize throwing of the accessory, and advantageous securement of each cleat to both the corresponding crossbar and the corresponding strip.
Inventors
- 👤 Yves Aumont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:10
CPC Classifications
B; B60; B60B; B60B39/00; B60B39/02; B60B39/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
349 words
As an anti-slipping accessory for engaging between a powered tire wheel of a vehicle and a supporting surface, comprising a pair of converging flat bendable strips having an upper face and an underface, a plurality of rigid elongated straight parallel crossbars, each of V-shape cross-section, having an apex longitudinal edge and a pair of diverging wings, and further including a pair of parallel longitudinal flanges extending from the free edges of said wings, said crossbars secured at both ends to the respective strips, substantially equally spaced from one another along said strips, both ends of each crossbar having a slit opening at said end and extending towards the other end of the crossbars, said strip inserted within said slits, pointed cleats secured to all intersecting portions of said crossbars and strips and securing said crossbars to said strips, said cleats projecting from the underface of said strips and of said crossbars to penetrate the supporting surface, said crossbars including an outermost crossbar joining the ends of said strips which are farthest apart and an innermost crossbar, all of said crossbars, except said outermost crossbar, having their apex longitudinal edge downwardly directed, said outermost crossbar being reversed relative to the other crossbars and having its apex longitudinal edge upwardly directed, said innermost crossbar joining portions of said strips spaced from the ends of said strips which are closest apart, and a terminal crossbar, of L-shape cross-section, joining and secured to the ends of said strips which are closest apart, said terminal crossbar having a first flange disposed in the general plane of said strips and a second flange extending upwardly, the end portions of said terminal crossbar protruding laterally from said strips and curved upwardly so that the upwardly curved portions of said second flange will engage the side notches of the tread of the tire of said wheel, movement of said wheel over the central portion of said intermediate crossbars causing their apex longitudinal edges and the associated cleats to engage said supporting surface, the unevenness of said surface being allowed for by the bending of said bendable strips.
Claim 2
Dependent Claim
349 words
As an anti-slipping accessory for engaging between a powered tire wheel of a vehicle and a supporting surface, comprising a pair of converging flat bendable strips having an upper face and an underface, a plurality of rigid elongated straight parallel crossbars, each of V-shape cross-section, having an apex longitudinal edge and a pair of diverging wings, and further including a pair of parallel longitudinal flanges extending from the free edges of said wings, said crossbars secured at both ends to the respective strips, substantially equally spaced from one another along said strips, both ends of each crossbar having a slit opening at said end and extending towards the other end of the crossbars, said strip inserted within said slits, pointed cleats secured to all intersecting portions of said crossbars and strips and securing said crossbars to said strips, said cleats projecting from the underface of said strips and of said crossbars to penetrate the supporting surface, said crossbars including an outermost crossbar joining the ends of said strips which are farthest apart and an innermost crossbar, all of said crossbars, except said outermost crossbar, having their apex longitudinal edge downwardly directed, said outermost crossbar being reversed relative to the other crossbars and having its apex longitudinal edge upwardly directed, said innermost crossbar joining portions of said strips spaced from the ends of said strips which are closest apart, and a terminal crossbar, of L-shape cross-section, joining and secured to the ends of said strips which are closest apart, said terminal crossbar having a first flange disposed in the general plane of said strips and a second flange extending upwardly, the end portions of said terminal crossbar protruding laterally from said strips and curved upwardly so that the upwardly curved portions of said second flange will engage the side notches of the tread of the tire of said wheel, movement of said wheel over the central portion of said intermediate crossbars causing their apex longitudinal edges and the associated cleats to engage said supporting surface, the unevenness of said surface being allowed for by the bending of said bendable strips.
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) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |