Moisture detector
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United States of America Patent
Stats
-
Jan 20, 1981
Grant Date -
N/A
app pub date -
Feb 2, 1979
filing date -
Feb 2, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compressed dehydrated cellulose sponge wafer has conductive plates attached to opposing faces. A bridging conductor electrically connects the two plates together upon swelling of the wafer responsive to its contact with moisture. One edge of the sponge is treated with adhesive so as to form a hinge. The wafer opens like a book upon contact with moisture forcing the extending plates into contact.
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Cited Art Landscape
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