Sump alarm

Details Sump alarm Sump alarm

1995-09-18

1998-08-11

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340450, 340604, 340618, 340620, 73290R, 73304R, G08B 2100

Patent

active

057932948

ABSTRACT:
A galvanic cell is formed when ground water within a sump reservoir, tub or other pool, rises to contact electrodes constructed of dissimilar metals, the electrodes mounted in a bridge, with recessing, expansion brackets, to facilitate covering the sump hole and including an alarm device adapted to provide a warning signal should the water level exceed a predetermined level to contact the electrodes.

REFERENCES:
patent: 4110740 (1978-08-01), Akita et al.
patent: 4188826 (1980-02-01), Kankura et al.
patent: 4227190 (1980-10-01), Kelley et al.
patent: 4264902 (1981-04-01), Miller
patent: 4279078 (1981-07-01), Hinshaw et al.
patent: 4377550 (1983-03-01), Tokarz
patent: 4804947 (1989-02-01), Geleziunas
patent: 4827242 (1989-05-01), Blankenship et al.
patent: 4827246 (1989-05-01), Dolan et al.
patent: 4841282 (1989-06-01), Reis
patent: 5048334 (1991-09-01), Hampton et al.
patent: 5345224 (1994-09-01), Brown
patent: 5483227 (1996-01-01), Kuo et al.

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