US PATENT SUBCLASS 315 / 349
.~ Discharge control discharge device load

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

326  DF  DISCHARGE DEVICE LOAD {8}
349.~ Discharge control discharge device load {4}
350  DF  .~.~> Plural control currents and/or potentials {1}
352  DF  .~.~> Rectifier and/or discharge device in the control circuit {1}
354  DF  .~.~> Transformer in the control circuit
355  DF  .~.~> Condenser in the control circuit {1}

DEFINITION

Classification: 315/349

(under subclass 326) Systems wherein the electric discharge load device is provided with a discharge controlling means, and the system includes means for controlling the electric current and/or potential supplied to the control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

43, and indented subclass, subclasses 61, 63, for devices which include a discharge control discharge device and an electrical circuit element structurally combined in a unitary device.

157, where the control circuit includes a radiant energy responsive device (photocell).

194, and indented subclasses, where the control circuit includes phase shifting means for shifting the phase of the current and/or voltage in the control circuit with respect to the current in the cathode-anode circuit of the discharge

device.

237, and indented subclass, where there is a condenser in the supply circuit of the discharge device load. 268, and indented subclasses, where the source of supply current for the discharge device load is pulsating or alternating current.

325, and the subclasses specified in the notes to the definition of that subclass, for systems under the class definition having a plurality of discharge control discharge device load devices in the system.

335, and indented subclass, and the subclasses specified in the notes to the definition of those subclasses for systems under the class definition provided with a discharge device load device which is provided with an auxiliary starting electrode for controlling the discharge.

341, and indented subclasses, for systems under the class definition wherein the load device is a discharge device provided with a plurality of discharge controlling means (such as a grid electrode and an electromagnet).

344, and indented subclasses and the subclasses specified in the notes to the definition of those subclasses for systems under the class definition wherein the load device is a discharge device provided with an electromagnet for influencing the discharge.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

308, and the subclasses specified in the Notes thereto for the structure of discharge devices, per se, which have a discharge controlling electrode.

314, Electric Lamp and Discharge Devices: Consumable Electrodes,

35, for consumable electrode discharge device systems wherein the discharge device includes an auxiliary electrode placed adjacent to the discharge space, the auxiliary electrode circuit controlling the operation of the electrode feeding mechanism of the discharge device.

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. 327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses for miscellaneous space discharge device systems not otherwise

classified wherein the space discharge device is provided with a discharge controlling means.

363, Electric Power Conversion Systems,

111+, and the subclasses mentioned in the notes thereto, for electronic tube conversion systems wherein the electronic tube is provided with a discharge control means (e.g., grid) and the potential applied to the control means is controlled. Some of the systems of Class 363 are closely analogous to the systems of this subclass. See section VI, 7 of the class definition of Class 363 for the line between Class 315 and Class 363.

378, X-Ray or Gamma Ray Systems or Devices,

113, for X-ray tube systems including a space discharge control element.