Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1985-08-05
1987-05-05
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
210315, 210924, 324 65P, 340620, G08B 2100
Patent
active
046636145
ABSTRACT:
A probe comprising an electrically conductive polymer and a pair of electrodes is placed to be contacted by the chemical. Contact changes the molecular structure or arrangement and changes the resistivity of the polymer, which is measured to actuate an indicator and/or alarm. The probe may be incorporated in a float. The chemical detector may be combined with a water detector.
REFERENCES:
patent: 4563674 (1986-01-01), Kobayashi
Caplan Julian
Myer Daniel
Rowland James L.
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