Motor speed control for power tool

Details Motor speed control for power tool Motor speed control for power tool

1974-07-03

1976-10-26

Rubinson, Gene Z.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

H02P 728

Patent

active

039886565

ABSTRACT:
In a hand-held electric power tool, a combination including an electromotor, and an electric circuit for controlling the speed of the motor, including a pressure switch for controlling the motor speed, a first control potentiometer operatively associated with said pressure switch for adjusting the motor speed from zero up to a predetermined motor operating speed.

REFERENCES:
patent: 3209228 (1965-09-01), Gawron
patent: 3278821 (1966-10-01), Gutzwiller
patent: 3327196 (1967-06-01), Sahrbacker
patent: 3328613 (1967-06-01), Gawron
patent: 3329842 (1967-07-01), Brown

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