Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent
1972-10-24
1976-06-15
Freeh, William L.
Pumps
Condition responsive control of pump drive motor
Having timer or delay means
417 40, F04B 4900
Patent
active
039633748
ABSTRACT:
A pump control comprising a control circuit having a timer which periodically closes the control circuit and hence an energizing electric circuit to an electric motor driving the pump, for predetermined intervals of time, and a float assembly having a vertically movable float surrounded by a vertical guide and shield having openings adjacent its bottom. Inlet and outlet lines extend upwardly through its bottom and establish an upward liquid level in the float chamber and provide support. A reduced flow drain line at the bottom of the float chamber drains liquid to establish a lower liquid level. A removable top closes the float chamber, which top carries a switch actuated by a float stem extending through it so that movement of the float in response to liquid levels closes the control circuit and thus the energizing circuit to the electric motor and opens the circuit to the timer when the float is in an upper position, and opens the control circuit to the energizing circuit to the motor and closes the circuit to the timer when the float is in a lower position. The float is located out of the path of fluid flowing into and through the float chamber and is shielded by the vertical guide so that surges or flow of gas do not affect operation of the float.
REFERENCES:
patent: 1574502 (1926-02-01), Matthews, Jr. et al.
patent: 2280930 (1942-04-01), Reeves
patent: 2316494 (1943-04-01), Tipton
patent: 3247798 (1966-04-01), Glasgow et al.
patent: 3276380 (1966-10-01), Stevenson
patent: 3366063 (1968-01-01), Cottrell
LandOfFree
Well 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 Well pump control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well pump control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1692150