Liquid level sensing apparatus

Details Liquid level sensing apparatus Liquid level sensing apparatus

1978-05-08

1979-09-25

Scott, James R.

Communications: electrical

Condition responsive indicating system

Specific condition

200 6104, 200 6106, 200 612, 340604, 340605, 340618, 340693, H01H 3500, G08B 2100

Patent

active

041692616

ABSTRACT:
A liquid level sensing apparatus includes a housing having disposed therein circuit means and a power source for providing an indication when the liquid on a surface reaches a predetermined level. The sensing device which activates the circuit means is a disposable liquid disruptable fuse link fabricated from porous paper mounted on the arm portions of a spring means capable of activating the circuit means.

REFERENCES:
patent: 1135798 (1915-04-01), Hirschman
patent: 1153314 (1915-09-01), Keeler
patent: 1174827 (1916-03-01), Conway
patent: 1201241 (1916-10-01), Berg
patent: 1253986 (1918-01-01), Larson
patent: 2482448 (1949-09-01), Wiest, Sr.
patent: 3115557 (1963-12-01), Kjellman
patent: 3288960 (1966-11-01), Miller
patent: 3548137 (1970-12-01), Farrell et al.
patent: 3712967 (1973-01-01), Carson
patent: 3979569 (1976-09-01), Bilgrei

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