Torque control device for electrical tools

Details Torque control device for electrical tools Torque control device for electrical tools

2006-06-27

2006-06-27

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C323S349000, C323S265000

Reexamination Certificate

active

07068000

ABSTRACT:
A torque control device for an electrical tool has a switching circuit, a voltage detecting circuit, a torque detecting circuit and a processor. The switching circuit connects between a motor of the electrical tool and a DC voltage source. The voltage detecting circuit detects voltage or current variation of the motor. The torque detecting circuit based on the detected voltage or current variation data outputs an actual torque value of the motor. The processor compares the actual torque value with a default value to determine whether actual torque is greater than the default. If so, the switching circuit is turned off by the processor to prevent the motor from being damaged.

REFERENCES:
patent: 4185701 (1980-01-01), Boys
patent: 4426588 (1984-01-01), Weilenmann
patent: 4935643 (1990-06-01), Reichle et al.
patent: 6479958 (2002-11-01), Thompson et al.
patent: 6954048 (2005-10-01), Cho
patent: 2004/0050181 (2004-03-01), Shimizu et al.

Affiliated with

Also associated with

Rating

Torque control device for electrical tools does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque control device for electrical tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque control device for electrical tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3654788