Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1980-03-19
1982-03-09
Caldwell, Sr., John W.
Communications: electrical
Condition responsive indicating system
Specific condition
174 70R, 174117R, 340605, G08B 2100
Patent
active
043192327
ABSTRACT:
A liquid detection device for energizing a warning signal. An electronic switch, of the non-latching type, is provided for coupling a source of electrical energy to a warning device responsive to a first signal at the inputs thereof. An elongated probe is provided having at least two generally parallel conductors enclosed in an insulative sheath having a plurality of apertures therein for exposing adjacent sections of the conductor. The conductors are coupled to the inputs of the electronic switching device for generating the first signal responsive to moisture being operatively coupled over the apertures between the conductors. The probe is of sufficient length in order to form a perimeter about the area in which the liquid is to be detected.
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Olson Raymond G.
Westphal Frank C.
Caldwell Sr. John W.
Myer Daniel
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