Torque sensing automatic shut-off and reset clutch for screwdriv

Details Torque sensing automatic shut-off and reset clutch for screwdriv Torque sensing automatic shut-off and reset clutch for screwdriv

1990-08-31

1991-10-08

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

173 12, 192 56R, 192150, F16D 4320, B25B 2314

Patent

active

050545884

ABSTRACT:
An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a driving clutch member and a driven bit holder connected by ball bearings retained by the clutch member which engages in pockets in the bit holder. The pockets include a specific ramp construction which insures that the threshold torque level of the tool in the forward direction is less than the threshold level in the reverse direction.

REFERENCES:
patent: 3237742 (1966-03-01), Ulbing
patent: 3442362 (1969-05-01), Bangerter
patent: 3766990 (1973-10-01), Eckman et al.
patent: 4071092 (1978-01-01), Wallace
patent: 4078618 (1978-03-01), DePagter et al.
patent: 4154308 (1979-05-01), Goldsberry et al.
patent: 4576270 (1986-03-01), Baltz et al.
patent: 4844177 (1989-07-01), Robinson et al.
patent: 4880064 (1989-11-01), Willoughby et al.

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