US PATENT SUBCLASS 431 / 89
.~ By condition of burner feed or feed means
Current as of:
June, 1999
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Terms of Use
431 /
HD
COMBUSTION
18
DF
TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL
{26}
89
.~ By condition of burner feed or feed means {1}
90
DF
.~.~
> Sensor of one feed controls another feed
DEFINITION
Classification: 431/89
(under subclass 18) Apparatus in which a means sensing the condition in or of burner feed structure exerts a control.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36+, for control of or by the temperature of, pressure of, or liquid level in heated feed means.
61, for the sequential of plural burners by fuel feed pressure variations.
64, for a level responsive means which controls the fuel level in a wick pot or in a pot type burner.
65, for means cutting off the flow of fuel by collected fuel overflow.
SEE OR SEARCH CLASS
137, Fluid Handling,
455+, for a line condition change responsive valve of general utility.
