Universal adjustable lift/drop hitch

Land vehicles – Wheeled – Articulated vehicle

Reexamination Certificate

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Details

C280S495000

Reexamination Certificate

active

07451996

ABSTRACT:
A new and simple hitch assembly comprising a vertically adjustable bar (vertical bar) secured within a mounting sleeve which in turn is securely attached to a hitch bar. A vertical securing pin releasably engages the vertical bar and is maintained in place by a spring, the pin and spring comprising the vertical securing mechanism. The hitch assembly mates with standard hitch receivers such that the relative height of a hitch ball may be varied. The hitch assembly is easy to manufacture and is durable, strong, and stable during towing. Such a hitch assembly is of simple design and has few movable parts. Such a hitch assembly is also compact and has a large range of height adjustment as it is mountable in alternative vertical orientations. The vertical bar has a series of holes in which the vertical securing pin is engaged.

REFERENCES:
patent: 2806710 (1957-09-01), Mascaro
patent: 2864626 (1958-12-01), Schantz
patent: 3400949 (1968-09-01), Kendall
patent: 3679233 (1972-07-01), Baker et al.
patent: 3865406 (1975-02-01), Dutton
patent: 4381069 (1983-04-01), Kreck
patent: 4429895 (1984-02-01), Hunter
patent: 4662647 (1987-05-01), Calvert
patent: 5322315 (1994-06-01), Carsten
patent: 5413366 (1995-05-01), Gibbons
patent: 5458389 (1995-10-01), Young
patent: 5800294 (1998-09-01), Naecker, Jr.
patent: 5975553 (1999-11-01), Van Vleet
patent: 6502845 (2003-01-01), Van Vleet
patent: 6575488 (2003-06-01), Massey
patent: 6824156 (2004-11-01), Smith
patent: 6902181 (2005-06-01), Dye

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