Lift apparatus having a pivoting pole for lifting and moving a m

Details Lift apparatus having a pivoting pole for lifting and moving a m Lift apparatus having a pivoting pole for lifting and moving a m

1996-10-15

1998-07-07

Smith, James G.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Special engaging feature

254133, 254134, 254130, 294 17, 74544, B66F 300

Patent

active

057756740

ABSTRACT:
A lift device for lifting a manhole cover which includes a base and a pole configured to lift the manhole cover when one end of the pole is pressed downward. The length of the pole is adjustable in order to permit easy storage and transportation, and to increase the lift force. Retainers are configured to secure manhole covers to the lift device to permit the lifting of the manhole covers in a manner that their center of mass is kept near the end of the pole.

REFERENCES:
patent: 1427576 (1922-09-01), Bryant
patent: 3985338 (1976-10-01), Herrmann
patent: 4157810 (1979-06-01), Haller et al.
patent: 4250769 (1981-02-01), Herring
patent: 4365786 (1982-12-01), Osteen
patent: 4695037 (1987-09-01), Hadbavny
patent: 4793646 (1988-12-01), Michaud, Jr.
patent: 4991893 (1991-02-01), Gordon et al.
patent: 5165661 (1992-11-01), Wright

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