US PATENT SUBCLASS 431 / 16
.~.~.~ Responsive to gas leakage, overflow, abnormal pressure or electrical component malfunction

Current as of: June, 1999
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431 /   HD   COMBUSTION

13  DF  WITH INDICATOR OR INSPECTION MEANS {2}
14  DF  .~ Correlated with action of condition responsive burner control {1}
15  DF  .~.~ Shutdown or aborted start attempt indicated {1}
16.~.~.~ Responsive to gas leakage, overflow, abnormal pressure or electrical component malfunction

DEFINITION

Classification: 431/16

(under subclass 15) Apparatus that: (1) responds to sensed

leakage, overflow or pressure outside of a predetermined range or (2) responds to an indication by an electrical test circuit of electrical component deficiency or failure.