Pump control

Details Pump control Pump control

1975-09-08

1978-06-20

Schwadron, Martin P.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

137240, 137392, 307118, 417 36, A01J 500, F04B 4906, G05D 912

Patent

active

040959201

ABSTRACT:
A pump control for a pipeline milking system in which milk collects in a receiver and is pumped out periodically. The control has a liquid level sensing circuit connected with an electrode in the receiver. The sensing circuit includes a transistor amplifier, a source of alternating signal, a circuit connecting the source through the electrode and liquid with the base of the transistor and a sensitivity resistor connected in shunt with the transistor base. A timer actuated by conduction of the transistor controls the pump operation. The circuit has provision for control of the pump operation during washing with a switch selecting the milk or wash control electrode and selecting the appropriate time period for the timer.

REFERENCES:
patent: 3477460 (1969-11-01), Dotto
patent: 3537472 (1970-11-01), Yulio
patent: 3602251 (1971-08-01), Hill
patent: 3787733 (1974-01-01), Peters

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1131947