Protective means for feeder of machinery with DC-motor

Details Protective means for feeder of machinery with DC-motor Protective means for feeder of machinery with DC-motor

1977-07-28

1979-04-24

Schaefer, Robert K.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318332, 318341, 318342, 318434, H02K 1732

Patent

active

041514505

ABSTRACT:
A protective means for a feeder of machinery having means for transmitting control signal formed from the differential between a predetermined revolution speed and an actual revolution speed of a DC-motor for driving the feeder, and a means to control current in the DC-motor according to said control signal, thereby protecting the motor against excessive current.

REFERENCES:
patent: 3617844 (1971-11-01), Grygera
patent: 3691440 (1972-09-01), Haddock
patent: 3952236 (1976-04-01), Hoover

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