US PATENT SUBCLASS 315 / 268
.~ Discharge control discharge device load

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

Internet Version by PATENTEC © 1999      Terms of Use


315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

246  DF  PULSATING OR A.C. SUPPLY {10}
268.~ Discharge control discharge device load {5}
269  DF  .~.~> With plural discharge control devices
270  DF  .~.~> Plural control potentials {1}
272  DF  .~.~> Rectifier and/or discharge device in the control circuit {1}
274  DF  .~.~> Transformer in the control circuit
275  DF  .~.~> Condenser in the control circuit

DEFINITION

Classification: 315/268

(under subclass 246) Systems wherein the load device is a discharge device provided with a discharge controlling means and the system includes means for controlling the electric discharge by applying an electric current and/or potential to the control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148, for this subject matter where the discharge device is a plural cathode and/or anode discharge device and is provided with discharge control means, the discharge device being connected in a polyphase alternating current supply system.

194, and indented subclasses, for this subject matter where the system includes means to shift the phase of the discharge controlling current and/or potential with respect to the current in the cathode-anode circuit.

251, for this subject matter where there are a plurality of discharge control devices in the system, the discharge devices being of the asymmetrical type, and being connected in inverse parallel relation with respect to each other.

252, for this subject matter where there are a plurality of discharge control discharge devices in the system.

261, and indented subclasses, for systems under subclass 246 where the discharge control means is an auxiliary starting electrode. 267, for systems under subclass 246 where the discharge controlling means is an electromagnet.

349, and indented subclasses and the subclasses specified in the notes to the definition of those subclasses, for other systems wherein the load device is a discharge control discharge device.

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 which are provided with a discharge control electrode.

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.

363, Electric Power Conversion Systems,

116, and 121+, and the subclasses mentioned in the notes thereto, for electronic tube conversion systems wherein the electronic tube convertor is provided a discharge control device for controlling the output current. Some of the systems in Class 363 are closely analogous to the systems of this subclass. See Lines With Other Classes and Within This Class in the class definition of Class 363 for the line between Class 315 and Class 363.