Motorized screw jack assembly

Details Motorized screw jack assembly Motorized screw jack assembly

1994-06-27

1996-03-05

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Lazy tongs

254103, B66F 322

Patent

active

054960142

ABSTRACT:
A screw jack includes a pair of frames disposed between a pair of walls, a bracket disposed above the beams, and a bolt engaged between the lower ends of the frames. An actuating device is engaged with the bolt and includes a motor for rotating the bolt so as to move the lower ends of the frames toward each other or away from each other and so as to elevate the bracket. The bracket can be easily move up and down by the motorized actuating device.

REFERENCES:
patent: 3997143 (1976-12-01), Rose
patent: 5029814 (1991-07-01), Liegel et al.

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