Reuseable puncture shield for tire casings

Details Reuseable puncture shield for tire casings Reuseable puncture shield for tire casings

1977-12-15

1980-04-15

Kunin, Stephen G.

Resilient tires and wheels

Tires, resilient

Cushion

152312, 152314, B60C 1700

Patent

active

041978935

ABSTRACT:
A puncture resistant pneumatic tire including a casing and an inner tube where the side walls of the casing flex under load a known amount, the method of designing a puncture shield which does not fail from reversion when driven at high speeds. The shield is made in a mould from liquid natural rubber a foaming agent and other compounds. The outer surface of the ring is contoured to mate with the lower inside of the tire casing and the upper or inner surface of the ring is designed to protect the tube from bulging in use and to be able itself to withstand flexing at the flex zone of the casing, by forming the inner surface with a convex shape at its outer sides and by flattening and upwardly bulging the inner surface of the shield where it overlies the tread portion of the tire to create tapered wings at its sides as seen in cross section and a massive puncture resistant portion over the tire treads.

REFERENCES:
patent: 1390249 (1921-09-01), Privett
patent: 1498143 (1924-06-01), Allyan
patent: 1875102 (1932-08-01), Morse
patent: 2708469 (1955-05-01), Lydon
patent: 3095917 (1963-07-01), Arsandaux
patent: 4058152 (1977-11-01), Beck et al.

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