Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1981-11-24
1985-03-19
Brigance, Gerald L.
Communications: electrical
Condition responsive indicating system
Specific condition
340635, 324 62, 219372, 219481, G08B 2100
Patent
active
045062595
ABSTRACT:
The present invention is directed to a device for detecting faults in an electrically-conductive heating element and more specifically concerns a digital monitor which compares internal electrical noise produced by the electrically-conductive heating element with external electrical noise produced by the heating element power source in order to determine whether faults exist in the heating element.
REFERENCES:
patent: 3657602 (1972-04-01), Boehm et al.
patent: 3906341 (1975-09-01), Getz et al.
patent: 4292499 (1981-09-01), Kleinschmidt et al.
Brigance Gerald L.
Raychem Corporation
Richardson Timothy H. P.
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