Tow bar with torsion spring lift assist and method

Details Tow bar with torsion spring lift assist and method Tow bar with torsion spring lift assist and method

2006-03-14

2006-03-14

Morris, Lesley D. (Department: 3611)

Land vehicles

Wheeled

Articulated vehicle

C280S485000, C280S486000, C280S489000

Reexamination Certificate

active

07011329

ABSTRACT:
A tow bar with a torsion spring disposed between the tow bar and a steering arm to urge the tow bar towards an operating position, the torsion spring minimizing the force required by an operator to lift the tow bar.

REFERENCES:
patent: 3331618 (1967-07-01), Head et al.
patent: 3649048 (1972-03-01), Garnett
patent: 4351542 (1982-09-01), Lovell et al.
patent: 4471973 (1984-09-01), Beckmann, Sr.
patent: 5240273 (1993-08-01), Stead et al.
patent: 6135485 (2000-10-01), Filbrun
patent: 6494478 (2002-12-01), MacKarvich

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