Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent
1994-07-27
1996-08-27
Vrablik, John J.
Pumps
Condition responsive control of pump drive motor
Having timer or delay means
417 4411, F04B 4900
Patent
active
055494560
ABSTRACT:
A pump control system for adjusting the frequency of operation of a pump motor in accordance with the demand on the pump includes means for periodically actuating the pump motor to initiate operation of the pump at periodic intervals; sensor means for sensing the condition of the operating pump motor; and means responsive to the sensor means for adjusting the periodic interval to conform the operation of the pump motor to demand on the pump.
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Anastos William
Burrill James T.
Rule Industries Inc.
Thai Xuan M.
Vrablik John J.
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