Moisture-detecting, switching device and a method of forming...

Details Moisture-detecting, switching device and a method of forming... Moisture-detecting, switching device and a method of forming...

H - Electricity

01

H

H01H 35/42 (2006.01)

Patent

CA 2107031

One end of a dual-ended housing is closed off by a plug formed of a water-soluble material which is admixed with a con- stituent which forms a readily-frangible structure in the plug. An electrical switch which has an actuating plunger is set, in the housing against the plug, so that the latter holds the plunger depressed/retracted. Moisture expands the material which, in turn, destroys the structure and, subsequently, the plug is so weakened that the plunger breaks through to actuate the switch.

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