Pump control responsive to timer, delay circuit and motor curren

Details Pump control responsive to timer, delay circuit and motor curren Pump control responsive to timer, delay circuit and motor curren

1990-10-01

1991-12-31

Bertsch, Richard A.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

417 12, 417 36, 361 90, 318474, 318484, F04B 4902

Patent

active

050767631

ABSTRACT:
Disclosed herein is an apparatus and method for controlling electrically powered liquid-moving pumps, particularly bilge and sump pumps. The apparatus is characterized by the fact that no portion thereof need be located in the hostile environment of the bilge or sump served by the pump controlled thereby.

REFERENCES:
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patent: 4421643 (1983-12-01), Frederick
patent: 4473338 (1984-09-01), Garmong
patent: 4505643 (1985-03-01), Millis et al.

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