Wheel for shopping carts

Details Wheel for shopping carts Wheel for shopping carts

1991-07-16

1993-05-18

Stormer, Russell D.

Resilient tires and wheels

Tires, resilient

Cushion

301 647, 301 95, B60C 724

Patent

active

052112136

ABSTRACT:
A wheel for shopping carts. The wheel has a unitary, polymeric hub with a pair of opposed bearing cavities. An annular tire supporting groove has a pair of sloped sidewalls and a base which includes several sharp ribs. A relatively thick rubber tire is held in the annular groove and is expanded and placed in the groove under tension so that its inner edge is deformed by the sharp ribs, thus holding the tire in place.

REFERENCES:
patent: 1475094 (1923-11-01), Tuttle
patent: 1865432 (1932-07-01), Bossert
patent: 2713373 (1955-07-01), Daugherty
patent: 3066716 (1962-12-01), Fishman
patent: 3695728 (1972-10-01), Haussels
patent: 4362202 (1982-12-01), Sacks
patent: 4561481 (1985-12-01), Kawauchi et al.
patent: 4592595 (1986-06-01), Freeman
patent: 4923252 (1990-05-01), Plamper et al.
patent: 4944563 (1990-07-01), Pinchbeck et al.

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