Vertical lift floor jack construction

Details Vertical lift floor jack construction Vertical lift floor jack construction

1992-10-30

1993-11-16

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

B60P 148

Patent

active

052616410

ABSTRACT:
A vertical lift floor jack device (10) for moving an object in a vertical plane; wherein, the device includes a pair of lift arm members (50) having one end which is moved downwardly and forwardly in an arcuate path relative to a housing member (20) while the other end of the lift arm members (50) are moved upwardly at an angle; and, further including a linkage unit (13) that cooperates with both the housing member (20) and the lift arm members (50) for maintaining a lift pad member (60) in a horizontal disposition as the lift pad member (60) is raised and lowered in a vertical plane.

REFERENCES:
patent: 2099903 (1937-11-01), Nilson
patent: 2806613 (1957-09-01), Johnson
patent: 2814394 (1957-11-01), Witcher
patent: 2909358 (1959-10-01), Southerwick
patent: 4513950 (1985-04-01), Yamagishi
patent: 4635902 (1987-01-01), Chou
patent: 4742991 (1988-05-01), Hung
patent: 5065983 (1991-11-01), Slay

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