Liquid level control assembly for pumps

Details Liquid level control assembly for pumps Liquid level control assembly for pumps

1994-09-30

1996-10-08

Thorpe, Timothy S.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

F04B 4904

Patent

active

055624227

ABSTRACT:
A switch for a liquid level control is activated by a switch actuator with a magnetic portion when the magnetic portion is drawn to a magnetic actuator brought into proximity with the switch actuator when a particular liquid level has been reached. The magnetic actuator and switch are in isolated portions of a unitary housing and may be submersed without detrimental effect to the operation of the level control switch.

REFERENCES:
patent: 3316845 (1967-05-01), Schumann
patent: 3684400 (1972-08-01), Einerson et al.
patent: 3897172 (1975-07-01), Hall
patent: 4441860 (1984-04-01), Tsujimoto
patent: 5030803 (1991-07-01), Yarbrough
patent: 5297939 (1994-03-01), Orth et al.
patent: 5324171 (1994-06-01), Cook

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