Continuously adjustable hitch assembly

Details Continuously adjustable hitch assembly Continuously adjustable hitch assembly

2006-02-22

2008-09-16

Nguyen, John Q. (Department: 4114)

Land vehicles

Wheeled

Articulated vehicle

Reexamination Certificate

active

07425013

ABSTRACT:
A ball hitch device mountable upon the rear of a tractor vehicle is interactive with a ball-receiving socket disposed upon a forwardly directed tongue of a trailered apparatus. The ball hitch device includes paired rigid extension arms pivotably secured to the tractor vehicle and which embrace a tubular receiver into which a hitch bar is telescopically inserted. A hitch ball extends upwardly from the rearward extremity of the hitch bar. An electrically driven winch has a lifting cable attached to the receiver. When activated, the cable causes the assembly of extension arms, receiver and hitch bar to pivot upwardly in a circular arc, thereby controllably raising the hitch ball toward engagement with the ball-receiving socket.

REFERENCES:
patent: 3400949 (1968-09-01), Kendall
patent: 4033601 (1977-07-01), Lindahl et al.
patent: 4103928 (1978-08-01), Sheppard, Jr.
patent: 4266799 (1981-05-01), Wood
patent: 5358269 (1994-10-01), Jakeman et al.
patent: 6126189 (2000-10-01), Venis
patent: 6575488 (2003-06-01), Massey
patent: 6663133 (2003-12-01), Rosenlund
patent: 6824156 (2004-11-01), Smith
patent: 7111417 (2006-09-01), Bartlett
patent: 2004/0061308 (2004-04-01), McCarron et al.

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