Jack mechanism having positive stop means for its crank handle

Details Jack mechanism having positive stop means for its crank handle Jack mechanism having positive stop means for its crank handle

1994-01-18

1995-04-04

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Screw

192141, 74526, 74545, B66F 308

Patent

active

054029848

ABSTRACT:
A jack mechanism having a crank handle that drives a linear motion control all nut and threaded screw. Two rods are included to provide a positive stop in each direction of the jack's limit so as to prevent overrun of the mechanism.

REFERENCES:
patent: 1997444 (1935-04-01), Wilson
patent: 2951460 (1960-09-01), Pierson
patent: 4396813 (1983-08-01), Hesselbart et al.
patent: 5230416 (1993-07-01), Itoh et al.

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