Power wrench

Details Power wrench Power wrench

1984-07-09

1986-08-26

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 1346

Patent

active

046075461

ABSTRACT:
A power wrench which includes a driving unit for driving a wrench head, a casing for the driving unit, a support foot carried nonrotatably by the casing for offsetting reaction forces created by the driving unit, a pressure member, a spherical ball and socket connection between the pressure member and the support foot whereby the pressure member automatically assumes a position in total contact with a support surfaces to avoid local peak stresses during the operation of the power wrench, the casing including a polygonal peripheral outer surface profile, and the support foot having a slide ring whose profile is formed by faces which engage and effectively lock against those of the casing.

REFERENCES:
patent: 3972242 (1976-08-01), Hunt
patent: 4309923 (1982-01-01), Wilmeth
patent: 4385533 (1983-05-01), Collins

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