Adjustable automatic shut-off mechanism for lever or trigger con

Details Adjustable automatic shut-off mechanism for lever or trigger con Adjustable automatic shut-off mechanism for lever or trigger con

1990-05-15

1991-10-29

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 56R, 192150, 173 12, 173169, 81470, B25B 23145, B23Q 506

Patent

active

050607715

ABSTRACT:
A rotary vane air motor tool includes an adjustable torque sensing clutch which disengages the tool bit from the air motor and simultaneously closes a normally open valve to the air motor upon reaching a threshold value. A lever or toggle actuated normally closed valve is operable to initiate operation of the tool. The normally closed valve includes an exhaust or bypass passage to permit resetting of the normally open valve.

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patent: 4576270 (1986-03-01), Baltz et al.
patent: 4650007 (1987-03-01), Fujita et al.
patent: 4844177 (1989-07-01), Robinson et al.

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