Monitor apparatus for sump pumps

Details Monitor apparatus for sump pumps Monitor apparatus for sump pumps

1979-03-29

1980-10-14

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

73308, 73311, 340663, G08B 2100

Patent

active

042284279

ABSTRACT:
Audible or visual warning signals are employed in a pump system having a primary and an auxiliary pump to indicate loss of power or a malfunctioning pump. Float switches react to a rising liquid level, thereby opening fail-safe circuits, and closing warning circuits which give sensory perceptible signals.

REFERENCES:
patent: 2678434 (1954-05-01), Brown et al.
patent: 3264627 (1966-08-01), Austin
patent: 3399399 (1968-08-01), Apfelbaum
patent: 3545272 (1970-12-01), McGill

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