Impact air wrench having a two position pressure regulator

Details Impact air wrench having a two position pressure regulator Impact air wrench having a two position pressure regulator

1974-09-03

1976-04-20

Purser, Ernest R.

Tool driving or impacting

Passage in manipulating handle for drive motor motive fluid

Motive fluid control valve in handle passage

173163, 415503, B23B 4504

Patent

active

039512177

ABSTRACT:
A pneumatically powered impact wrench having a two position pressure regulator located in a back cap of the housing between a reverse valve and a reversible air driven motor, the regulator being adapted in a selected first position to cause application of full air pressure to the motor and a consequent full torque to the work in a direction as determined by the reverse valve, and to cause application in a second selected position of reduced air pressure to the motor and a consequent torque of a predetermined lesser value to the motor in an opposite direction.

REFERENCES:
patent: 3093360 (1963-06-01), Krouse
patent: 3354732 (1967-11-01), Wickham
patent: 3666027 (1972-05-01), Sauerwein
patent: 3696834 (1972-10-01), Vonhoff, Jr.
patent: 3718313 (1973-02-01), Miller
patent: 3833068 (1974-09-01), Hall

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