Trailer hitch lock

Details Trailer hitch lock Trailer hitch lock

1993-07-15

1994-07-26

Focarino, Margaret A.

Land vehicles

Wheeled

Articulated vehicle

70 14, B60D 128

Patent

active

053322517

ABSTRACT:
A trailer hitch lock assembly for disabling the trailer hitch of an unattached trailer to prevent theft of the trailer. The trailer hitch lock obstructs access to the trailer eyelet in the drawbar of the trailer hitch to prevent unauthorized hitching of the trailer to a truck with a military hitch. The trailer hitch lock comprises an upper bolt plate with a bolt that that extends through the eyelet of the trailer hitch and engages a lower shield plate. A padlock engages a hole in the end o the bolt to secure the bolt plate and the shield plate together. The shield plate has a cylindrical shield which surrounds and protects the padlock from tampering.

REFERENCES:
patent: 2077825 (1937-04-01), Davidson
patent: 2641124 (1953-06-01), Gallagher et al.
patent: 3884055 (1975-05-01), Vuillemot
patent: 4376544 (1983-03-01), Sette et al.
patent: 4380160 (1983-04-01), Hoffman
patent: 4440005 (1984-04-01), Bulle
patent: 4480450 (1984-11-01), Brown
patent: 4571964 (1986-02-01), Bratzler
patent: 4693096 (1987-09-01), Mercer
patent: 4774823 (1988-10-01), Callison

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