Tube guard

Details Tube guard Tube guard

1975-04-28

1976-09-28

Hoffman, Drayton E.

Resilient tires and wheels

Tires, resilient

Armored

B60C 2104

Patent

active

039825779

ABSTRACT:
The present invention relates to a tube guard for protecting inner tubes of relatively thin tires. The tube guard is comprised of a unitary annular guard member molded from a solid flexible synthetic polymeric material having a high Shore hardness. The guard member includes a central section having a greater cross-section at the mid portion of the central section and two peripheral, generally parallel, tapered sections integral with and extending inwardly from the central section. The outer surface of the tube guard is rough to prevent slippage relative to the outer casing of the tire and the inner surface of the tube guard is smooth to prevent damaging the inner tube.

REFERENCES:
patent: 1181065 (1916-04-01), Coffield
patent: 1371097 (1921-03-01), Jones
patent: 1460794 (1923-07-01), Grube
patent: 1474387 (1923-11-01), Schoneberger
patent: 3111973 (1963-11-01), Lambach
patent: 3306331 (1967-02-01), Cherniaew

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