Hotwell alarm system

Details Hotwell alarm system Hotwell alarm system

1977-04-07

1978-12-05

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

210 95, 210 96R, 210521, 356 70, G08B 2100, B01D 3500, B01D 4300

Patent

active

041288335

ABSTRACT:
An alarm system for the detection of oil pollution in a feedwater system, comprising a housing having an inlet water line at one end and an outlet water line at the other end and formed with a series of internal, alternately disposed baffles adapted to retard water flow and forming passes thereinbetween, a light disposed in the floor of the housing before the first baffle with its beam directed to the roof of the housing, and an electric eye circuit disposed in the housing roof in registry with said beam, whereby dimming of the light beam by the introduction of oil in the water flowing inbetween activates an audible and visual alarm. Filter means are provided at the discharge end of the housing to remove sediment and particles passing through the housing.

REFERENCES:
patent: 974025 (1910-10-01), Clark et al.
patent: 1166802 (1916-01-01), Albert et al.
patent: 1994768 (1935-03-01), Holven et al.
patent: 2562181 (1951-07-01), Frommer
patent: 2631511 (1953-03-01), Tuttle
patent: 2692528 (1954-10-01), Uhl
patent: 3845480 (1974-10-01), Steinberg
patent: 3939072 (1976-02-01), LaForte

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