Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1977-01-11
1978-09-19
Hoffman, Drayton E.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152DIG1, 152330R, 152330A, B60C 1106, B60C 1112
Patent
active
041146719
ABSTRACT:
A pneumatic tire for vehicles has a tread band provided with grooves which extend circumferentially about the tire. The grooves are formed by a series of substantially rectilinear sections which are disposed at a predetermined angle with the equatorial plane of the tire and intersect to impart a zig-zag arrangement to the grooves about the tire. The intersections between said groove sections are situated in planes parallel to the equatorial plane of the tire, and each tread surface portion between one of the parallel planes and a pair of adjacent sections of a groove is shaped so the distance at its points from the tire axis gradually decreases from the parallel plane toward the region in which the sections of the pair of adjacent sections intersect.
REFERENCES:
patent: 2706509 (1955-04-01), White
patent: 3727661 (1973-04-01), Hoke
patent: 3841374 (1974-10-01), Boileau
patent: 3893498 (1975-07-01), Wayne
patent: 3951193 (1976-04-01), Yeager
patent: 3954130 (1976-05-01), Verdier
Maiocchi Luigi
Silva Luigi
Hoffman Drayton E.
Industrie Pirelli S.p.A.
Williams Laurence E.
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