Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-12-19
1999-10-26
Wu, Daniel J.
Communications: electrical
Condition responsive indicating system
Specific condition
340655, 340657, 340584, 340622, G08B 2100
Patent
active
059736054
ABSTRACT:
A combination of circuits is responsive to a respective one of a definite number of operation patterns of a plurality of PTCs, the operation patterns being different therebetween and including a plurality of first patterns each respectively representative of an operating state of a corresponding PTC thermally operated, for providing a signal with a corresponding one of a definite number of signal states representing the operation patterns, respectively, and a common LED is operable by the signal with a respective signal state to provide an identifiable indication relative to an indication by the signal with any other signal state.
REFERENCES:
patent: 4672315 (1987-06-01), Heinzler et al.
patent: 5349336 (1994-09-01), Nishiura et al.
patent: 5769705 (1998-06-01), O'Callaghan et al.
Pham Toan N.
Wu Daniel J.
Yazaki -Corporation
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