Gas valve shut off method and apparatus
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United States of America Patent
Stats
-
Jul 25, 1989
Grant Date -
N/A
app pub date -
Feb 16, 1988
filing date -
Feb 16, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Provision is made for sensing when the gas valve relay contacts are welded, or stuck, in the closed position and for responsively turning off the inducer motor when that occurs. This in turn causes the pressure switch to open to thereby cut off the power to the gas valve and cause it to move to the closed position.
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Family
International Classification(s)
Cited Art Landscape
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