Land vehicles – Wheeled – Articulated vehicle
Patent
1977-03-28
1978-04-04
Betts, Kenneth H.
Land vehicles
Wheeled
Articulated vehicle
280512, B60D 106
Patent
active
040823113
ABSTRACT:
Presented is a trailer hitch assembly for use in connecting a trailer tongue to a conventional ball-type trailer hitch, including a socket member to grasp the trailer hitch ball while permitting pivotal movement of the trailer hitch assembly on the ball, and a sleeve mechanism for locking the trailer hitch assembly to prevent release of the trailer hitch ball by the trailer hitch assembly when the trailer hitch assembly is pivotally attached to a towing tractor, and which locks the trailer hitch assembly in a closed condition when the trailer is left unattended and disengaged from a tractor.
REFERENCES:
patent: 3759549 (1973-09-01), Morris
patent: 3820823 (1974-06-01), Beaston
patent: 3831982 (1974-08-01), Bernhardt et al.
patent: 3876242 (1975-04-01), Eaton
Betts Kenneth H.
Leavitt John J.
Stack, Jr. Norman L.
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