Safety jack

Details Safety jack Safety jack

2005-06-07

2005-06-07

Wilson, Lee D. (Department: 3723)

Implements or apparatus for applying pushing or pulling force

Fluid pressure

Vehicle attached

C254S08900R, C254S00200C

Reexamination Certificate

active

06902148

ABSTRACT:
The present invention is a safety jack having a propping mechanism comprised of a prop attached parallel to and jointly movable with the lifting arm, a storage well for receiving the prop in a retracted position, and a pin engagable with the prop to bias the prop and the body of the jack to prevent untimely lifting arm retraction.

REFERENCES:
patent: 3567183 (1971-03-01), Voss
patent: 4042202 (1977-08-01), Molinari
patent: 4479634 (1984-10-01), Blatz
patent: 5228651 (1993-07-01), Warner
patent: 5984270 (1999-11-01), Hussaini et al.
patent: 6027102 (2000-02-01), Krupa
patent: 6322062 (2001-11-01), Conn et al.
patent: 6416039 (2002-07-01), Pietrusynski
patent: 6443413 (2002-09-01), Hawkins et al.
patent: 6464192 (2002-10-01), Gibbs, Jr.

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