Probe-type liquid detector

Details Probe-type liquid detector Probe-type liquid detector

1977-07-11

1978-11-21

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

Specific condition

338 35, 340605, G08B 2100

Patent

active

041268571

ABSTRACT:
Apparatus and system for monitoring sites for the presence of moisture or the collection of conductive liquids. Two housings are utilized with the apparatus to facilitate user convenience. A first of these housings, mounted at a location selected for easy access by the user, retains manually actuated switching, alarm components and batteries. This housing is electrically coupled with a second, smaller housing serving to encapsulate solid-state switching logic components and moisture detecting probes. Spurious R.F. noise is avoided within the system through the positioning of this solid state switching at the second housing in close adjacency with the probes. The probes are formed of a base material, one surface portion of which is covered with a noble metal, such as platinum. The remaining surfaces of the base are permitted to develop, in situ, a surface oxide which is immune to galvanic corrosive participation.

REFERENCES:
patent: 3279379 (1966-10-01), Klyce
patent: 3399399 (1968-08-01), Apfelbaum
patent: 3523244 (1970-08-01), Goodman et al.
patent: 3582930 (1971-06-01), Wiley
patent: 3696360 (1972-10-01), Gajewski
patent: 3757316 (1973-09-01), Fiorenzo

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