Flood guard warning system, apparatus and process

Details Flood guard warning system, apparatus and process Flood guard warning system, apparatus and process

1975-10-30

1978-04-11

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Plural pumps having separate drive motors, supply sources,...

73304R, 210 86, 210104, 417 63, F04B 4106

Patent

active

040836576

ABSTRACT:
A plurality of horizontally and vertically spaced apart remote liquid level sensor assemblies free of upwardly directed surfaces operatively connect only under emergency conditions to the sump tank of a sewerage system through vertical housings connected to horizontally extending drain lines connected to a sump tank and reliably indicate such emergency conditions for timely corrective action and avoid flood damage.

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patent: 3233549 (1966-02-01), Howe
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patent: 3485262 (1969-12-01), Perren
patent: 3630637 (1971-12-01), Repp
patent: 3730884 (1973-05-01), Burns et al.
patent: 3787733 (1974-01-01), Peters
patent: 3941507 (1976-03-01), Niedermeyer
patent: 3954612 (1976-05-01), Wilkerson

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