US PATENT SUBCLASS 315 / 177
LOAD DEVICE IN THE PRIMARY AND SECONDARY CIRCUIT OF THE SUPPLY TRANSFORMER


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

177LOAD DEVICE IN THE PRIMARY AND SECONDARY CIRCUIT OF THE SUPPLY TRANSFORMER


DEFINITION

Classification: 315/177

(under the class definition) Systems provided with a transformer connected between the source of supply and a load device for supplying electric current and/or potential to the load device, the system also including a load device connected in the primary circuit of the transformer.

(1) Note. Where a single lamp or a single discharge device is the ultimate load device, and the system includes an additional lamp and/or discharge device in the circuit which is connected in the circuit so as to control and/or modify the current and/or potential supplied to such single ultimate load device, the patent is classified as a plural load device system if (a) the controlling and/or modifying device is a lamp, or (b) the controlling and/or modifying device is limited in the claims to being a gas or vapor discharge device. Conversely, such a system is not classified as a plural load device system where the controlling and/or modifying device is claimed broadly as a discharge device even though it is disclosed as a gas or vapor discharge device.

The controlling and/or modifying device may be connected in the control circuit of the discharge device where the ultimate load device is a discharge control discharge device, and the same basis of classification is used as is set forth above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200, and indented subclasses and the subclasses referred to in the notes to the definitions thereof for other systems provided with a discharge device or rectifier in the supply circuit of a load device.

254, and the subclasses specified in the notes to the definition of these subclasses, for other plural load device

systems having a transformer connected in the supply circuit. 276, and indented subclasses, and the subclasses specified in the notes to these subclasses for other single load device systems having a transformer connected in the supply circuit of the load device.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

355, 363, for miscellaneous transformer systems.