Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1976-09-16
1977-11-22
Hoffman, Drayton E.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152158, 152352A, 152353R, 152361R, 152399, B60C 1704, B60C 1500, B60C 1300
Patent
active
040591387
ABSTRACT:
A pneumatic vehicle tire having a run-flat capability and a hub adapted for use with such a tire are disclosed. The tire includes a carcass, a tread overlying the crown region of the carcass, sidewalls overlying the lateral portions of the carcass, the sidewalls terminating in respective beads at their radially inwardmost ends and merging into the tread at their radially outwardmost ends and an annulus of elastomeric material positioned between the inner surfaces of the beads for maintaining the beads in firm contact with the hub. Each of the sidewalls has an annular groove formed therein between its inwardmost and outwardmost ends for establishing the flexure zone of the tire and thereby controlling the folding point of the tire upon its deflation. The hub includes a rigid annulus, a first annular flange extending from one side of the annulus and permanently attached thereto and the second annular flange extending from the other side of the annulus, the second flange being removably attached to the annulus. One surface of each of the first and second flanges is contoured so that it conforms to the beads of the tire and substantially conforms to the radially inward portions of the sidewalls upon deflation of the tire. This abstract is not to be taken either as complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernable only by reference to and from the entire disclosure.
REFERENCES:
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patent: 1889799 (1932-12-01), Clark
patent: 2262780 (1941-11-01), Sherwood
patent: 2482221 (1949-09-01), Sokolik
patent: 2761489 (1956-09-01), Kraft
patent: 2789616 (1957-04-01), Cuthbertson et al.
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patent: 3554261 (1971-01-01), Mirtain
patent: 3610310 (1971-10-01), Wittneben
patent: 3638704 (1972-02-01), Boileau
patent: 3841375 (1974-10-01), Edwards
patent: 3983918 (1976-10-01), French
Devienne Andre M.
Mirtain Henri J.
Hoffman Drayton E.
Posin Jack
Uniroyal S.A.
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