Traction device for vehicle wheels

Land vehicles: wheels and axles – Wheel – Traction increasing

Patent

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Details

301 406, 301 411, 152216, B60B 1500

Patent

active

060220821

ABSTRACT:
A traction device for vehicle wheels has an expandable and contractible member mounted next to the vehicle wheel. The traction device has a tire with extending studs that is expandable by air pressure to increase the diameter of the tire. The tire is contracted by releasing the pressurized air within. The tire is expanded to a diameter just larger than the vehicle wheels so that the studs will engage the roadway to provide traction. The tire may be inflated manually from a pressurized air source and deflated manually. A pressure source and control valves may be provided to control the inflation and deflation of the tire remotely.

REFERENCES:
patent: 2079501 (1937-05-01), Gallagher
patent: 2174944 (1939-10-01), Leggett
patent: 2201632 (1940-05-01), Roessel
patent: 2241849 (1941-05-01), Fuchs
patent: 2254318 (1941-09-01), Roessel
patent: 2377923 (1945-06-01), Cawley
patent: 2559721 (1951-07-01), Kruse
patent: 2638384 (1953-05-01), Colin
patent: 2751959 (1956-06-01), Bloomquist
patent: 2765199 (1956-10-01), Partin
patent: 2903037 (1959-09-01), Palmer
patent: 3995909 (1976-12-01), Vander Lely
patent: 5810451 (1998-09-01), O'Brien

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