Moisture sensor for purging system

Details Moisture sensor for purging system Moisture sensor for purging system

1980-11-03

1984-04-24

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200 6105, H01H 2900

Patent

active

044450125

ABSTRACT:
A moisture sensor detects the presence of foreign matter in a fluid conducting conduit and produces an electrical signal which activates a pump to purge the conduit of the foreign matter. The moisture sensor includes a pair of conduits that may be formed of an electrically conductive material and a coupling for placing the pair of conduits in fluid communication. A pair of electrodes are mounted in the coupling and are insulated from one another until electrically conductive foreign matter bridges a gap between the electrodes. Bridging the gap between the electrodes causes a signal to be sent to a source of gas that injects gas in the conduits to remove the foreign material therefrom.

REFERENCES:
patent: 2666105 (1954-01-01), Menozzi et al.
patent: 2798215 (1957-07-01), Domingo et al.
patent: 3521791 (1970-07-01), Freise
patent: 3730046 (1973-05-01), Spence
patent: 3898637 (1975-08-01), Wolstenholme
patent: 4270564 (1981-06-01), Blackburn et al.

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