Land vehicles – Wheeled – Articulated vehicle
Patent
1988-07-07
1989-09-05
Pekar, John A.
Land vehicles
Wheeled
Articulated vehicle
280511, B60D 106
Patent
active
048631850
ABSTRACT:
Presented is a trailer hitch apparatus or assembly that marries a spherical ball to a monolithic plug that may be detachably locked in a complementary socket fixed to a tractor vehicle. In another aspect of the invention, the spherical ball attached to the monolithic plug is permanently pivotally mounted on the tongue of a trailer-type vehicle.
REFERENCES:
patent: 1255222 (1918-02-01), Potts
patent: 2549178 (1951-04-01), Dear
Leavitt John J.
Pekar John A.
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