Pneumatic tire with puncture resistance internal safety structur

Details Pneumatic tire with puncture resistance internal safety structur Pneumatic tire with puncture resistance internal safety structur

1975-08-27

1977-02-22

Hoffman, Drayton E.

Resilient tires and wheels

Tires, resilient

Cushion and pneumatic combined

152330RF, 152340, 152400, 152311, B60C 1702, B60C 1704, B60C 508

Patent

active

040087433

ABSTRACT:
A pneumatic tire with an internal toroidal safety structure that expands and provides emergency support between the tire tread and the wheel rim if the tire loses inflation pressure. The safety structure has an outer circumferential belt comprising one or more superposed layers of cord reinforced strips, the belt being secured to the safety structure in a relatively narrow central circumferential zone so that radial expansion of the toroidal safety structure is readily accommodated should the tire lose inflation pressure. The belt bears between the inner surface of the tread portion of the tire and the safety structure in the event of tire deflation or underinflation and thus guards against puncture. The safety structure may be an internal inflatable tube or a flexible resilient foam member, for example.

REFERENCES:
patent: 888345 (1908-05-01), Musclow et al.
patent: 1488998 (1924-04-01), Marshall
patent: 2045341 (1936-06-01), Bourdon
patent: 2237245 (1941-04-01), Wilson et al.
patent: 2560609 (1951-07-01), Van Hulzen
patent: 3025902 (1962-03-01), Sanderson
patent: 3195601 (1965-07-01), Travers
patent: 3724521 (1973-04-01), Coddington et al.
patent: 3945419 (1976-03-01), Kosanke

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