Wheel chock

Details Wheel chock Wheel chock

1985-11-26

1990-04-17

Halvosa, George E. A.

Brakes

Vehicle

On ground

256 131, 293109, 404 6, B60T 300

Patent

active

049172190

ABSTRACT:
A light-weight wheel chock is formed having a thin exterior shell of rigid, chemically-inert plastic material, such as high-density polyethylene, and an interior cavity filled with light-weight rigid or semi-rigid foam, such as high-density polyurethane foam.

REFERENCES:
patent: 2797774 (1952-10-01), Eckhart
patent: 2848070 (1957-08-01), Wilson
patent: 3189127 (1965-06-01), Karnow et al.
patent: 3265159 (1965-07-01), Worden
patent: 3664466 (1972-05-01), Rotheiser
patent: 3698290 (1972-10-01), Wallace
patent: 3800917 (1974-04-01), Vick
patent: 3819138 (1974-06-01), Rahkopf et al.
patent: 4134610 (1979-01-01), Lindewall
patent: 4144951 (1979-03-01), Rea
patent: 4321989 (1982-03-01), Meinzer

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