Solvent responsive signal-carrying device

Details Solvent responsive signal-carrying device Solvent responsive signal-carrying device

1990-03-28

1991-05-21

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340604, 73 4052, 174 11R, G08B 2100

Patent

active

050179080

ABSTRACT:
A signal-carrying member responsive to the presence of a solvent and suitable for use in a security cable or a liquid leakage detector, comprises a conductive ink 20, consisting of a particulate conductive material and a non-conductive carrier medium, printed on to a non-conductive strip 17 and conductors 16 such that when the printed material is contacted by a solvent to which the carrier medium is sensitive, conductive material will be released from the printed material and can be used to vary a signal passed through the signal-carrying member.

REFERENCES:
patent: 4859989 (1989-08-01), McPherson
patent: 4896527 (1990-01-01), Akida

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