Fluid operated wrench

Details Fluid operated wrench Fluid operated wrench

1985-08-21

1987-11-17

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 574, B25B 1316

Patent

active

047065265

ABSTRACT:
A fluid-operated wrench for tightening and loosening threaded connectors comprises an action part having a turnable ratchet gear, and driving elements for turning the ratchet gear, and a reaction part arranged to counteract a reaction force created during tightening or loosening a threaded connector in one direction and tending to turn the action part in an opposite direction and including an attachment portion attachable to the action part and an abutment member arranged to abut against a stationary support during tightening or loosening of a threaded connector, wherein the attachment portion and the abutment member of the reaction part are formed as separate members engageable with one another so that the abutment member is movable relative to the attachment portion by a user.

REFERENCES:
patent: 3706244 (1972-12-01), Wilmeth
patent: 4132136 (1979-01-01), Wilmeth
patent: 4385533 (1983-05-01), Collins
patent: 4446762 (1984-05-01), Junkers

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