Land vehicles – Wheeled – Articulated vehicle
Patent
1987-11-03
1990-05-15
Marmor, Charles A.
Land vehicles
Wheeled
Articulated vehicle
280512, 403143, B60D 106
Patent
active
049252054
ABSTRACT:
A tamper resistant trailer hitch. The trailer hitch includes a body with a hitch ball receiving cavity therein and a conventional coupling mechanism. The hitch may be locked in a coupled position on the hitch ball or in an uncoupled position in which the ball receiving cavity is covered to provide tamper resistance. In a first embodiment, a side opening coupling configuration is used with the cover mounted on a rotating locking ring. In a second embodiment, a pivoting locking plate is mounted on the lower side of the hitch. In a third embodiment, a sliding locking plate is mounted on the lower side of the hitch.
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"Hammer Blow Drop Forged Bulldog.RTM. Trailer Couplers", published by the Hammer Blow Corporation in Wausau, Wisconsin-Brochure.
Olds James D.
Shoffner William H.
Villalon S. Leonard
Camby Richard
Guardian Hitch, Inc.
Marmor Charles A.
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