Power-operated wrench extension apparatus

Details Power-operated wrench extension apparatus Power-operated wrench extension apparatus

1999-03-26

2000-05-02

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5729, 811772, B25B 2100

Patent

active

060558873

ABSTRACT:
A power-operated wrench can be equipped with a wrench extension for access to bolts or nuts that are otherwise inaccessible. The wrench extension includes an elongated tubular housing rigidly secured to the wrench power unit for rotatably supporting a wrench extension drive shaft in a vibration-free operating mode. The tubular housing keeps the rotating shaft from vibrating in spite of reactive forces exerted by the bolt or nut on the wrench socket attached to the shaft.

REFERENCES:
patent: 2808749 (1957-10-01), Lampke
patent: 3430510 (1969-03-01), Hendrikson
patent: 4803904 (1989-02-01), Stanich et al.
patent: 5115701 (1992-05-01), Lehnert
patent: 5345845 (1994-09-01), Myers
patent: 5544553 (1996-08-01), Galat
patent: 5577425 (1996-11-01), Holmin et al.
patent: 5586476 (1996-12-01), Wenner
patent: 5709136 (1998-01-01), Frenkel

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