Automatic pump control

Details Automatic pump control Automatic pump control

1994-09-15

1996-11-19

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

73304R, 307 91, 417 36, F04B 4906, B63B 1300

Patent

active

055765823

ABSTRACT:
An automatic pump control for a pump such as a marine vessel bilge pump uses solid state components and has no moving parts. A first integrated logic device activates an FET transistor and completes a circuit which turns the pump on when the water reaches a predetermined high level and in association with an interconnected second integrated logic device keeps the pump on until the water subsequently reaches a predetermined low level. The control can be manually operated and includes circuitry to activate a high water alarm. The switch housing is molded in a manner which permits mounting directly to the pump.

REFERENCES:
patent: 4454454 (1984-06-01), Valentine
patent: 4612949 (1986-09-01), Henson
patent: 4728005 (1988-03-01), Jacobs et al.
patent: 4766329 (1988-08-01), Santiago
patent: 5322119 (1994-06-01), Kadwell et al.

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