Pneumatic tire having improved wet traction

Details Pneumatic tire having improved wet traction Pneumatic tire having improved wet traction

1992-10-05

1994-08-16

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

D12146, B60C 1104

Patent

active

053378156

ABSTRACT:
A directional pneumatic tire having improved wet traction has an annular aqua channel and lateral grooves which direct water from the footprint to the shoulder area of the tire to help prevent hydroplaning. The aqua channel has an extended U-shape wherein a wall of the aqua channel closer to a shoulder of the tire has a steeper incline than the side of the aqua channel closer to the center of the tire. The aqua channel may have a step between its shoulder side and its center side wherein the center side is higher by a distance d. In one illustrated embodiment, a center tread portion of the tire, bounded by an aqua channel and a center groove, and two lateral grooves, comprises a single block element.

REFERENCES:
patent: D312993 (1990-12-01), Guermandi et al.
patent: D324840 (1992-03-01), Maxwell et al.
patent: D328444 (1992-08-01), Graas
patent: D329032 (1992-09-01), Maxwell et al.
patent: D329627 (1992-09-01), Attinello et al.
patent: D335115 (1993-04-01), Suzuki
patent: D336273 (1993-06-01), Kohara et al.
1991 Tread Design Guide, p. 35, p. 55.
Design Application 07/951,705, filed Sep. 28, 1992.

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