Tool driving or impacting – Automatic control of power operated means
Reexamination Certificate
2005-08-02
2005-08-02
Smith, Scott A. (Department: 3721)
Tool driving or impacting
Automatic control of power operated means
C173S004000, C173S170000, C173S171000
Reexamination Certificate
active
06923268
ABSTRACT:
An electric or power rotational tool including a driving switch of a push operating system that switches the electric motor ON when the rotational tool contacts a work object such as a screw, etc. and is displaced by being pressed, and a driving switch of a lever operating system that switches the electric motor ON when a switch lever installed in the grip portion of the electric rotational tool is displaced by being pressed. Each of the driving switches is constructed by a combination of a magnet and a magnetic sensor, and the magnetic sensor is connected to the power circuit of the electric motor, so that either one of operating systems is selected; and the driving of the electric motor is initiated by switching the power circuit ON through a magnetism sensing action of the magnetic sensor of the selected operating system.
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Koda & Androlia
Smith Scott A.
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