Pressure hitch

Details Pressure hitch Pressure hitch

2005-09-20

2005-09-20

Winner, Tony (Department: 3611)

Land vehicles

Wheeled

Articulated vehicle

C280S415100, C414S680000

Reexamination Certificate

active

06945553

ABSTRACT:
The pressure hitch is operable from the cab of a towing vehicle. The towing vehicle is equipped with a basic ball hitch and a vertically orientable hydraulically operated ram having a rubber pressure stub at its lowermost end in an orientation above the basic ball hitch. The towed vehicle has an inverted cup-shaped socket for coupling (without need for grip tightening) on the basic ball hitch. The ram's rubber pressure stub is vertically movable for pressing against the upper outer surface of the socket and is the sole structure for holding the socket and basic ball hitch together during towing operations. The ideal towing vehicle is a front end loader.

REFERENCES:
patent: 3826517 (1974-07-01), Hunger
patent: 3827724 (1974-08-01), Ackley
patent: 4015855 (1977-04-01), Murray
patent: 4148499 (1979-04-01), Johnson
patent: 4431207 (1984-02-01), Langenfeld et al.
patent: 4482166 (1984-11-01), Van Antwerp
patent: 4677930 (1987-07-01), Ortloff
patent: 5730227 (1998-03-01), Hund
patent: 5971493 (1999-10-01), Robert
patent: 6047982 (2000-04-01), McClure et al.
patent: 6604752 (2003-08-01), Gerres et al.
patent: 6837510 (2005-01-01), Karls

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