Land vehicles – Wheeled – Articulated vehicle
Patent
1988-02-08
1989-04-04
Pekar, John A.
Land vehicles
Wheeled
Articulated vehicle
403143, B60D 106
Patent
active
048179795
ABSTRACT:
A trailer coupler having a ball-receiving cavity formed by a stationary and a movable ball-gripping member. A movable abutment at the edge of the cavity adapted to be displaced by the ball of a towing vehicle hitch entering the ball-receiving cavity. Before the movable abutment is displaced, it prevents movement of the coupler operating handle to locked position. When the movable abutment is displaced, the operating handle is able to move to locked position and to move the movable ball-gripping member to secure the ball in the ball-receiving cavity. A latch securing the operating handle in locked position until a movable latch piece is moved to unlatched position.
REFERENCES:
patent: 2435024 (1948-01-01), Wagner
patent: 2459448 (1949-01-01), Murray
patent: 2732222 (1956-01-01), Harroun et al.
patent: 2855222 (1958-10-01), Bolmes et al.
patent: 3049366 (1962-08-01), Peters
patent: 3153545 (1964-10-01), Bolmes et al.
patent: 3446520 (1969-05-01), Gibson
patent: 3567253 (1971-03-01), De Puydt et al.
patent: 3830580 (1974-08-01), Slattery et al.
patent: 4239252 (1980-12-01), Huetsch et al.
patent: 4416467 (1983-11-01), Bradley
Bowen Duane C.
Pekar John A.
Unique Functional Products
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