US PATENT SUBCLASS 315 / 272
.~.~ 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

246  DF  PULSATING OR A.C. SUPPLY {10}
268  DF  .~ Discharge control discharge device load {5}
272.~.~ Rectifier and/or discharge device in the control circuit {1}
273  DF  .~.~.~> With condenser in the control circuit

DEFINITION

Classification: 315/272

(under subclass 268) Systems provided with a rectifier and/or an electric space 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 device in the control circuit is claimed as a discharge device whose operation depends upon gaseous 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 system for the purpose of classification.

SEE OR SEARCH THIS CLASS, SUBCLASS:

197, 198, and 199, for this subject matter where the system includes means to shift the phase of the control current and/or potential with respect to the current flowing in the cathode-anode circuit.

198, see the reference to 197, above.

199, see the reference to 197, above.

203, and indented subclass, where the discharge control means is an auxiliary starting electrode and there is a rectifier or discharge in the auxiliary electrode circuit. 352, and indented subclass and the subclasses specified in the notes to the definitions of those subclasses, for other systems under the class definition provided with a discharge control discharge device load device and having a rectifier or discharge device in the control circuit.

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 in the class definition of Class 323.