Pneumatic screwdriver with torque responsive shut-off
Torque controller shutoff mechanism
Low torque automatic screwdriver
Torque control and fluid shutoff mechanism for a fluid operated tool
Torque sensing, automatic shut-off and reset clutch for toggle controlled screwdrivers, nutsetters and the like
Torque sensing, automatic shut-off and reset clutch for screwdrivers, nutsetters and the like Patent #: 4880064
ApplicationNo. 576283 filed on 08/31/1990
US Classes:477/178, Engine shut off173/178, Having torque responsive clutch192/56.62, Ball or roller192/150Overload release
ExaminersPrimary: Bonck, Rodney H.
Attorney, Agent or Firm
International ClassesF16D 043/20
AbstractAn 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.
Field of SearchOverload release