Run flat banded pneumatic tire

Details Run flat banded pneumatic tire Run flat banded pneumatic tire

1997-01-13

1999-03-09

Johnstone, Adrienne

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152526, 152527, 152530, 152533, 152538, 156 85, 156117, 156177, B29D 3006, B29D 3070, B60C 918, B60C 1700

Patent

active

058794840

ABSTRACT:
A run flat pneumatic tire is reinforced by a thin annular composite band imbedded in the crown portion of the tire in combination with a plurality of radial cords or plies in its sidewalls which have freedom in shear with respect to one another. The band is formed by a plurality of layers of material strips wherein each strip is wound in a helical pattern, with adjacent strips being wound at reverse angles to each other. Each layer is formed under sufficient pressure and at an elevated temperature whereby the band is prestressed in tension which decreases the maximum stress at the footprint area of the tire. The invention furthermore incorporates the method of imparting the prestress on the annular band during its manufacture.

REFERENCES:
patent: 4111249 (1978-09-01), Markow
patent: 4287924 (1981-09-01), Deck et al.
patent: 4318434 (1982-03-01), Markow
patent: 4428411 (1984-01-01), Markow et al.
patent: 4456048 (1984-06-01), Markow et al.
patent: 4459167 (1984-07-01), Markow et al.
patent: 4673014 (1987-06-01), Markow
patent: 4734144 (1988-03-01), Markow
patent: 4794966 (1989-01-01), Markow
patent: 5201971 (1993-04-01), Gifford
patent: 5368082 (1994-11-01), Oare et al.
patent: 5427166 (1995-06-01), Willard, Jr.

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