All-terrain pneumatic tire

Details All-terrain pneumatic tire All-terrain pneumatic tire

1988-02-04

1989-11-21

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209R, 152548, B60C 1103

Patent

active

048815861

ABSTRACT:
The tread of a tire has an on-road pattern formed in its central area and including traction grooves. An off-road pattern is provided at each side of the tread central area, as formed on each tire shoulder. The off-road pattern has lugs and an annular wing adjacent to a curved recessed portion and is positioned radially inward from the bottom of the traction grooves so as to be held out of contact with the surface of the road during on-road operation. The on-road pattern is immersed in off-road terrain with the off-road pattern in contact with the surface of the terrain over an increased area to effectively engage mud, sand or the like.

REFERENCES:
patent: 3675700 (1972-07-01), Verdier
patent: 3811488 (1974-05-01), Duncan
patent: 4124052 (1978-11-01), Beauchamp
patent: 4129162 (1978-12-01), DeWitt
patent: 4356985 (1982-11-01), Yeager et al.

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