Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1988-01-21
1990-04-03
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152534, B60C 1106
Patent
active
049132083
ABSTRACT:
A pneumatic tire (10) having a tread (12), carcass (70), sidewalls (14), bead portions (18) and an annular reinforcing structure or belt structure (76). The tread (12) has two different types of circumferential grooves. Two circumferential straight grooves (20) divide the tire into three circumferentially extending portions (24,26,28). Each portion is further divided by a circumferentially extending zig-zag groove (22) or an "S" shaped groove. Each portion is then divided into blocks (30) by a plurality of axially extending grooves (32). The tread-reinforcing structure (76) has two belt plies (78,80) of steel cords (82), the cords of one are oriented at an angle A, with respect to the mid-circumferential centerplane (MC), while the cords of the other are oriented at an angle B, where angle B is less than angle A. The difference between angle A and angle B is greater than one degree and less than or equal to four degrees.
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1987 Tread Design Guide, .COPYRGT.1/87, p. 19, Cavalier SP 9000 H Tire 2nd Row dn from top, lt side of page.
1987 Tread Design Guide .COPYRGT.1/87, p. 78, Uniroyal Rallye St Tire, top left side of page.
1982 Tread Design Guide p. 19; Bridgestone RD-401 Steel (401v).
Anderson Norman D.
Fetty Harold D.
Vaughn Deborah K.
Ball Michael W.
Knable Geoffrey L.
Slattery, III R. J.
The Goodyear Tire & Rubber Company
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