US PATENT SUBCLASS 123 / 406.28
.~.~.~.~ Combustion condition sensed by optical sensor

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

406.11  DF  SPARK IGNITION TIMING CONTROL {5}
406.12  DF  .~ Electronic control {10}
406.19  DF  .~.~ Closed loop feedback control of spark timing {5}
406.26  DF  .~.~.~ Combustion condition responsive {4}
406.28.~.~.~.~ Combustion condition sensed by optical sensor

DEFINITION

Classification: 123/406.28

Combustion condition sensed by optical sensor:

(under subclass 406.26) Subject matter wherein the condition or parameter is detected by a transducer responsive to visible, infrared, or ultraviolet radiation within the combustion chamber.

SEE OR SEARCH CLASS

73, Measuring and Testing,

35.01+, for an optical sensor for detecting a combustion condition.

250, Radiant Energy, appropriate subclasses for an optical sensor, per se.