US PATENT SUBCLASS 123 / 697
.~.~.~ Heater for sensor or sensor environment


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



123 /   HD   INTERNAL-COMBUSTION ENGINES

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
672  DF  .~ Including exhaust gas condition responsive means {11}
693  DF  .~.~ With compensator for sensor output (e.g., current or voltage) {2}
697.~.~.~ Heater for sensor or sensor environment


DEFINITION

Classification: 123/697

Heater for sensor or sensor environment:

(under subclass 693) Subject matter wherein separate means is provided for raising the temperature of the products of combustion in the region of the transducer or of the transducer itself.