Plastic jack

Details Plastic jack Plastic jack

1992-10-08

1993-11-16

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

B66F 322

Patent

active

052616444

ABSTRACT:
A plastic pantograph jack for use in lifting and lowering automobiles comprising arms jointed together between a base and a load rest having a threaded rod passing through a pair of joints of the plastic members to raise or lower the load rest with respect to the base.

REFERENCES:
patent: 3523679 (1970-08-01), Clay
patent: 3695582 (1972-10-01), Clay
patent: 3737147 (1973-06-01), Morgan
patent: 4025054 (1977-05-01), Yamazaki
patent: 4624448 (1986-11-01), Lawman et al.
patent: 4695602 (1987-09-01), Crosby et al.
patent: 4836502 (1989-06-01), Yamauchi
patent: 4872903 (1989-10-01), Periou
patent: 5139232 (1992-08-01), Bailey

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