Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1982-03-17
1984-01-10
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
D12139, B60C 1100
Patent
active
044248431
ABSTRACT:
A pneumatic radial passenger tire having a tread portion provided with a pair of tread edges spaced apart axially of the tire, the tread portion being provided with a plurality of main grooves associated with each tread edge spaced circumferentially apart. Each of the main grooves following substantially identical paths axially inwardly and circumferentially of the tire. Each main groove having an axially outer end which opens outwardly of the tread edge and an axially inner edge which terminates at a distance from its associated tread edge of at least forty percent (40%) of the tread width. Each main groove having a first branch and a second branch extending therefrom in a generally opposite circumferential direction from which said main grooves extend. The first branch extends from its main groove towards and terminating in communication with the next circumferentially adjacent groove. Each second branch extends from its main groove past the next circumferentially adjacent main groove towards at least and in close proximity with the second circumferentially adjacent main groove.
REFERENCES:
patent: D100118 (1936-06-01), Nellen et al.
patent: D112978 (1939-01-01), James
patent: D113651 (1939-03-01), Balthazar
patent: D236710 (1975-09-01), Buck et al.
patent: 3674077 (1972-07-01), Verdier
patent: 3705613 (1972-12-01), Verdier
patent: 4057089 (1977-11-01), Johannsen
Fontaine Jean F. L.
Graas Maurice
Ball Michael W.
Pincelli Frank
The Goodyear Tire & Rubber Company
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