Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1989-11-15
1994-11-08
Knable, Geoffrey L.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152209R, B60C 1101, B60C 1104
Patent
active
053618149
ABSTRACT:
A radial ply pneumatic tire (30) has as asymmetric tread portion (41) having circumferential grooves (50, 51, 52, 53) and diagonal grooves (55, 56) therein. The tread is divided into three axial regions (A, B, C) of equal width, and in each region the net-to-gross ratio is different. The rate of treadwear in the axially outermost regions (A, B) of the tread are substantially equalized by features including varying groove depths and widths, groove paths, and chamfering the edges of block elements (57, 58, 62, 63) of the tread.
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Advertisement for Pirelli P500, Tire Review, Sep. 1989.
"Focus on Europe, The Stuart Marshall Report, Aladdins Cave in Tokyo", Modern Tire Dealer, Feb. 1988, p. 46.
Covert Darrell E.
Galante Richard L.
Hopkins William M.
Kolowski Michael A.
Maxwell Paul B.
King David L.
Knable Geoffrey L.
The Goodyear Tire & Rubber Company
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