1993-10-28
1995-05-02
Gall, Lloyd A.
Locks
Portable
70 34, 70 56, 70232, 70258, 280507, 292148, B60D 160, B60R 2500
Patent
active
054108934
ABSTRACT:
A trailer hitch coupling anti-theft lock is formed by a platen underlying the ball socket recess of a hitch coupling and having an elongated lock pin projecting vertically through the platen and secured at its innermost end with a flange for impinging a component of the hitch coupling between the flange and the platen. A hollow housing surrounding a shackle-type padlock is provided with an aperture in its wall for slidably receiving the outwardly projecting end portion of the lockpin and biasing the housing wall forming the aperture into an annular groove in the lockpin adjacent the outer surface of the platen in response to inward movement of the lock body relative to its shackle.
REFERENCES:
patent: Re28187 (1974-10-01), Longenecker
patent: 1557911 (1925-10-01), White
patent: 2856220 (1958-10-01), Easley
patent: 3606423 (1971-09-01), McCarthy
patent: 3740978 (1973-06-01), Smith et al.
patent: 3780546 (1973-12-01), Longenecker
patent: 3808847 (1974-05-01), Vesely
patent: 3977221 (1976-08-01), Foote
patent: 4291557 (1981-09-01), Bulle et al.
patent: 4571964 (1986-02-01), Bratzler
patent: 4883294 (1989-11-01), Goodspeed
patent: 4920772 (1990-05-01), Denison
patent: 5076078 (1991-12-01), Weger, Jr.
Gall Lloyd A.
Rhea Robert K.
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