Pneumatic tire having a unique footprint

Details Pneumatic tire having a unique footprint Pneumatic tire having a unique footprint

1991-03-08

1993-01-05

Knable, Geoffrey L.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

D12147, B60C 1111

Patent

active

051767660

ABSTRACT:
A directional pneumatic tire having improved wet traction is provided. The tire has an annular aqua channel and curved lateral grooves to direct water from the footprint to the shoulder area of the tire to help prevent hydroplaning. It has been found that the tire has a unique footprint which appears to characterize its stability. The footprint comprises two substantially trapezoidal contact patches which are oriented base to base and are separated from each other by 10% to 22% of the total tread width.

REFERENCES:
patent: D92050 (1934-04-01), Vidale
patent: D283499 (1986-04-01), Hammond
patent: D283500 (1986-04-01), Graas et al.
patent: 3939890 (1976-02-01), Abe
patent: 4057089 (1977-11-01), Johannsen
patent: 4700762 (1987-10-01), Landers
patent: 4962801 (1990-10-01), Tsuda
"Marks Standard Handbook for Mechanical Engineers" Ninth Edition; pp. 2-8.
"Plane and Solid Geometry" Wentworth, pp. 47-48.
"Pneumatic Tyre Design"; E. C. Woods; 1955; p. 24.

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