Power screwdriver

Details Power screwdriver Power screwdriver

2007-06-26

2007-06-26

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Processes

C173S002000, C173S176000, C173S178000, C173S183000

Reexamination Certificate

active

11197254

ABSTRACT:
A power screwdriver is disclosed having a drive which is coupled via a clutch, disengaging as a function of torque, to a tool drive shaft for driving a tool. The screwdriver comprises an electronic control unit for controlling the drive, and a sensor which is coupled to the electronic control unit in order to switch off the drive when the clutch responds. The electronic control unit is designed for activating the drive with a certain output, preferably with a reduced output, for a limited time after switch-off.

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