Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1991-03-08
1994-10-11
Ball, Michael
Resilient tires and wheels
Tires, resilient
Anti-skid devices
152DIG3, B60C 1111
Patent
active
053538544
ABSTRACT:
A directional pneumatic tire having improved wet traction is provided. The tread is divided into two annular portions, each annular portion comprising a plurality of block elements separated by lateral grooves. The block elements extend continuously from a shoulder area of the tire to a mid portion of the tread. The block elements have substantially circumferentially aligned notches in leading and trailing groove walls, wherein each notch is defined laterally by a narrow bridge of rubber. The tread has curved lateral grooves to direct water from the footprint to the shoulder area of the tire to help prevent hydroplaning. The pitch boundaries between annular portions of block elements may be skewed. The curved lateral grooves and the skewing reduce noise properties of the tire.
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Stile Industria, p. 23, top right picture, Dec. 1956.
"Pneumatic Tyre Design" by E. C. Woods 1952; p. 24.
Attinello John S.
Glover William E.
Landers Samuel P.
Ball Michael
Krawczyk Nancy T.
The Goodyear Tire & Rubber Company
Wheeler David E.
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