Pneumatic nut runner having a directional valve and an air regul

Details Pneumatic nut runner having a directional valve and an air regul Pneumatic nut runner having a directional valve and an air regul

1975-10-21

1977-04-12

Purser, Ernest R.

Tool driving or impacting

Passage in manipulating handle for drive motor motive fluid

Motive fluid control valve in handle passage

13762521, 1375992, B23B 4504, E03B

Patent

active

040169405

ABSTRACT:
A nut running pneumatically powered tool, such as an impact wrench, having in a handle portion a group of valves including a throttle valve for admitting air to the tool, a manually adjustable directional valve for selectively directing the air to either a forward or reverse side of an air motor, and a regulating unit located between the directional valve and the throttle valve manually adjustable independently of the directional valve for regulating the volume air flow from the throttle valve to the directional valve.

REFERENCES:
patent: 2695036 (1954-11-01), Kronheim
patent: 3093360 (1963-06-01), Krouse
patent: 3146795 (1964-09-01), Retallick
patent: 3354732 (1967-11-01), Wickham
patent: 3515225 (1970-06-01), States
patent: 3696834 (1972-10-01), Vahoff, Jr.
patent: 3833068 (1974-09-01), Hall
patent: 3927690 (1975-12-01), Agren

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