US PATENT SUBCLASS 313 / 126
.~.~ Automatically moved (e.g., engine vibration)


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

Internet Version by PATENTEC © 1999      Terms of Use



313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

118  DF  SPARK PLUGS {22}
125  DF  .~ Movable electrode (e.g., for cleaning, adjustable) {1}
126.~.~ Automatically moved (e.g., engine vibration)


DEFINITION

Classification: 313/126

(under subclass 125) Subject matter in which the electrode is automatically moved.

(1) Note. The electrode may be moved, for example, by engine vibration or by a thermostat. The motion may be effected so as, for example, to adjust the spacing of the spark gap electrodes or to clean the electrodes.

(2) Note. This subclass also includes spark plugs having means for automatically moving electrodes and means for disabling said first mentioned means so that the electrodes can optionally be held immovable.

(3) Note. This subclass includes spark plugs having both manual and automatic means to move an electrode.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127, for spark plugs having automatically moved cleaners.

143, for spark plugs having automatically moved baffles or gas directing means for the electrode chamber.