US PATENT SUBCLASS 315 / 352
.~.~ Rectifier and/or discharge device in the control circuit

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

326  DF  DISCHARGE DEVICE LOAD {8}
349  DF  .~ Discharge control discharge device load {4}
352.~.~ Rectifier and/or discharge device in the control circuit {1}
353  DF  .~.~.~> With condenser in the control circuit

DEFINITION

Classification: 315/352

(under subclass 349) Systems having a rectifier and/or an electric discharge device connected in the control circuit of the discharge device.

(1) Note. Where the system includes a plurality of discharge devices, one of which is connected in the control circuit of the discharge device which is the load in the circuit, the patent is classified as a plural load device system in the subclasses above where the discharge in the control circuit is claimed as a discharge device whose operation depends upon gas or vapor ionization even though the system is claimed as only having one ultimate load device. Where the controlling discharge device is claimed merely as a discharge device even though it is disclosed as a gaseous ionization discharge device, the system is not considered to be a plural load device is claimed merely as a discharge device system for the purpose of classification.

SEE OR SEARCH THIS CLASS, SUBCLASS:

157, for this subject matter where the discharge control discharge device load device is controlled by a radiant energy responsive device (photocell).

197, 198, 199, for this subject matter where the discharge

control circuit includes a discharge control discharge device and means for shifting the phase of the pulsating or alternating current in the control circuit with respect to the current in the cathode-anode circuit of the load device.

203, and indented subclass, for systems under the class definition wherein the load device is a discharge device having an auxiliary starting electrode, and the auxiliary starting electrode circuit includes an electric discharge device or rectifier. 272, for this subject matter where the discharge device load device is supplied with pulsating or alternating current.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

227, and 291 for electronic tube regulators. See Lines With Other Classes and Within This Class, "Electronic Tube Systems," in the class definition of Class 323.