Safety control circuit for direct current electromotive nail...

Details Safety control circuit for direct current electromotive nail... Safety control circuit for direct current electromotive nail...

2006-05-30

2006-05-30

Smith, Scott A. (Department: 3721)

Elongated-member-driving apparatus

With control means responsive to sensed condition

C227S008000, C227S131000, C361S153000, C361S155000

Reexamination Certificate

active

07051913

ABSTRACT:
A safety control circuit for a direct current electromotive nail driver comprises: a direct current power source for supplying power to the circuit; a control and protecting unit having a security switch, a trigger switch and a stop switch; and a motor for driving an object. When the security switch is turned on and then the trigger switch is pressed, the control and protecting unit will receive a signal from the trigger switch so as to conduct the motor and thus the motor operates to drive an object. When the motor operates through a predetermined time period, the stop switch will actuate a protection function of the control and protecting unit so that the motor cannot operate until the security switch is actuated again.

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