Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1975-07-29
1977-04-19
Hoffman, Drayton E.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152226, B60C 2720
Patent
active
040182584
ABSTRACT:
An anti-skid device for a vehicle tire includes a plurality of individual anti-skid units mounted on the outer surface of each tire. Each of the anti-skid units includes a resilient member having an anti-skid surface mounted in a recessed portion of the tire. Each anti-skid unit further includes an adjusting mechanism mounted in the tire and coupled to the resilient member for adjusting the position of the resilient member to vary the anti-skid surface from a retracted position within the recessed portion of the tire to an extended position with the anti-skid surface beyond the outer surface of the tire.
REFERENCES:
patent: 2708470 (1955-05-01), Gramelspacher
patent: 3120255 (1964-02-01), Coppola
patent: 3147790 (1964-09-01), Viscardi
patent: 3911984 (1975-10-01), West
Hoffman Drayton E.
Thomas Ralph L.
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