US PATENT SUBCLASS 315 / 332
.~.~.~.~ Automatic switch in the electrode moving device circuit

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

326  DF  DISCHARGE DEVICE LOAD {8}
327  DF  .~ Discharge drawing-type discharge device {3}
330  DF  .~.~ Auxiliary starting electrode type {1}
331  DF  .~.~.~ Movable auxiliary starting electrode {1}
332.~.~.~.~ Automatic switch in the electrode moving device circuit

DEFINITION

Classification: 315/332

(under subclass 331) Systems provided with electrically operated means for moving the auxiliary electrode with respect to the principal electrode, and having an automatically operated electric switch for controlling the circuit of the electrically operated auxiliary electrode moving means.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

146+, for discharge devices, per se, which have a movable discharge drawing auxiliary starting electrode where the operating means for moving the auxiliary electrode is an electrical means.

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

34, for discharge devices of the consumable electrode type (carbon arc lamps, et cetera) having an auxiliary discharge drawing starting electrode and provided with an automatically operated switch for controlling the circuit of the auxiliary electrode moving means.