Electric power tool for driving jack

Details Electric power tool for driving jack Electric power tool for driving jack

1995-12-04

1998-01-13

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Single throw lever

Mechanically actuated

B66F 308

Patent

active

057070431

ABSTRACT:
A driving joint includes a joint block secured to an output shaft of an electric driving unit, and a U-shaped connection plate connected at its opposite ends to the joint block and provided at its front wall with an elongated connection hole. The connection plate can be engaged within the U-shaped driven joint, and the elongated connection hole can be fitted to a connection plate of a T-shaped driven joint. With this arrangement, various types of jacks having different types of driven joints can be driven by a single electric tool.

REFERENCES:
patent: 1078567 (1913-11-01), Wagenhorst
patent: 4653727 (1987-03-01), Chang et al.
patent: 4749169 (1988-06-01), Pickles
patent: 4943034 (1990-07-01), Wagnon
patent: 4979355 (1990-12-01), Ulevich
patent: 4984489 (1991-01-01), Krauthamer
patent: 5085406 (1992-02-01), Schmaltz
patent: 5085407 (1992-02-01), Lonon
patent: 5101695 (1992-04-01), Johnson
patent: 5165660 (1992-11-01), Engel et al.
patent: 5496014 (1996-03-01), Hsu

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