US PATENT SUBCLASS 315 / 35
.~ Plural discharge device loads

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

32  DF  COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS AND ELECTRICAL CIRCUIT DEVICE STRUCTURE {19}
35.~ Plural discharge device loads {3}
36  DF  .~.~> Series connected discharge devices
37  DF  .~.~> Cathode-anode circuit connected to the discharge control electrode of another discharge device load (e.g., cascade)
38  DF  .~.~> Corresponding electrodes connected by a circuit impedance (e.g., push-pull)

DEFINITION

Classification: 315/35

(under subclass 32) Subject matter, wherein (1) a plurality of electric discharge device loads are each structurally combined with the same circuit element, or (2) a plurality of discharge device loads are each provided with means to cool and/or heat at least part of the discharge device loads, the cooling means being either structurally combined with or forming an electrical circuit element.

(1) Note. This subclass includes load devices having an enclosing envelope, the envelope enclosing a plurality of discharge devices, the circuit element being mounted either within the enclosing envelope, or within the base or connector, or otherwise structurally combined with the discharge device.

(2) Note. Where a plural discharge device system is claimed which is within the class definition, and the discharge devices are structurally combined in a single device, but no circuit element is combined with the discharge device structure, the patent is classified as a plural discharge device system in one of the other appropriate subclasses of this class.

(3) Note. This subclass includes two or more load devices,

each supplied with a cooling fluid from a common source of coolant, the cooling conduits being either formed as circuit impedances or structurally combined with a circuit impedance.

(4) Note. Patents claiming two or more discharge devices which are structurally united, such as being within the same envelope or enclosure, and having the electrodes of the respective discharge devices connected together, but not claiming any circuit element other than the conductive connector, are not included in this or the indented subclasses, see Class 313, Electric Lamp and Discharge Devices, subclasses 1+.