US PATENT SUBCLASS 431 / 19
.~ Responsive to combustion chamber pressure

Current as of: June, 1999
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431 /   HD   COMBUSTION

18  DF  TIMER, PROGRAMMER, RETARDER OR CONDITION RESPONSIVE CONTROL {26}
19.~ Responsive to combustion chamber pressure

DEFINITION

Classification: 431/19

(under subclass 18) Apparatus, in which a control of a burner element is effected in response to a sensed pressure within a

chamber in which fuel is burned.