Coupler lock

Details Coupler lock Coupler lock

1990-08-29

1992-10-13

Rice, Kenneth R.

Land vehicles

Wheeled

Articulated vehicle

280511, 70202, 70258, B60D 158

Patent

active

051544407

ABSTRACT:
A locking mechanism for a trailer coupler such as a ball and socket coupler having a release handwheel. The locking mechanism includes a shelf which in one embodiment, surrounds the handwheel to prevent accidental or unauthorized rotation of the release handwheel. In other embodiments, the shelf covers or abuts the handwheel. A padlock may be used to lock the locking shelf in position.

REFERENCES:
patent: 2166208 (1939-07-01), Dayton
patent: 2189710 (1940-02-01), Draeger
patent: 2197267 (1940-04-01), Gilmore
patent: 2250661 (1941-07-01), Thorp
patent: 2435857 (1948-02-01), Werner
patent: 2891806 (1959-06-01), Haverly
patent: 3391555 (1968-07-01), Mamo
patent: 3770299 (1973-11-01), Murphy
patent: 4756172 (1988-07-01), Weaver

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