Fluid-operated wrench

Details Fluid-operated wrench Fluid-operated wrench

1987-10-06

1989-07-11

Meislin, Debra

Tools

Wrench, screwdriver, or driver therefor

Machine

81 55, B25B 1346

Patent

active

048460281

ABSTRACT:
A fluid-operated wrench for tightening and loosening of threaded connectors, comprises a housing, drive unit arranged substantially in the housing, and engaging unit arranged to engage a threaded connector for tightening or loosening the same, the engaging unit being operatively connected with the drive unit so as to be turned and thereby to turn a threaded connector, the housing having a portion which extends to the engaging unit and forms an axle on which the engaging unit turns.

REFERENCES:
patent: 2760394 (1956-08-01), Wragge
patent: 2885919 (1959-05-01), Carlson
patent: 3759119 (1973-09-01), Wing
patent: 3791242 (1974-02-01), Bartusch
patent: 3916734 (1975-11-01), Sawan
patent: 4309923 (1982-01-01), Wilmeth
patent: 4671142 (1987-06-01), Junkes

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