US PATENT SUBCLASS 123 / 145 R
.~ Incandescent


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

143 R  DF  IGNITERS {6}
145 R.~ Incandescent {2}
146  DF  .~.~> Valve controlled
145 A  DF  .~.~> Electric (incandescent ignitors using electricity as a source of heat)

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 123/145

Igniting devices for internal-combustion engines comprising an igniting member maintained at a temperature sufficient to ignite the combustible mixture when it comes into contact therewith and heating means for maintaining such igniting member at a high temperature, generally at incandescence, whereby the combustible charge will be ignited upon coming into contact with the igniting member.

(1) Note. The igniting member may extend without the working cylinder or combustion-chamber of the engine, in which case it is generally maintained at a high temperature by means of an external heating-burner or the said igniting member may be located wholly within the working cylinder or combustion-chamber, in which case it is ordinarily maintained in a heated condition by the burning gases within the engine. The heating means for the igniting devices ordinarily forms no part of the igniting device itself; but such burners as are especially designed for and adapted to be used with an incandescent igniting device and are disclosed in connection with such a device are classified in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250+, and indented subclasses, and 146, for other patents relating to devices located within the working cylinder or combustion-chamber of an internal combustion engine and designed to or which in fact would both vaporize oil supplied to the engine and ignite the resulting combustible mixture.