Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1994-06-24
1996-06-18
Peng, John K.
Communications: electrical
Condition responsive indicating system
Specific condition
340635, 431 66, 219263, 219264, G08B 2100
Patent
active
055282261
ABSTRACT:
An apparatus and method for monitoring temperature and current in a gas ignition chamber by monitoring temperature in the gas ignition chamber, monitoring current flowing through first and second ignitors housed in the gas ignition chamber, comparing the temperature of the gas ignition chamber to a predetermined temperature, comparing the current flowing through the first ignitor to a first predetermined current, comparing the current flowing through the second ignitor to a second predetermined current, inactivating the first ignitor and activating the second ignitor whenever the current through the first ignitor becomes less than the first predetermined current, and sounding an audible alarm whenever the current through said second ignitor becomes less than the second predetermined current or whenever the temperature is below the predetermined temperature.
REFERENCES:
patent: 3594107 (1971-07-01), Willson
patent: 4788529 (1988-11-01), Lin
patent: 5035607 (1991-07-01), Peterson
Brown William R.
Friede Donald L.
Swartz Dennis C.
Advanced Micro Devices , Inc.
Lieu Julie
Peng John K.
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