US PATENT SUBCLASS 373 / 102
.~ Power supply system

Current as of: June, 1999
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373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

60  DF  ARC FURNACE DEVICE {9}
102.~ Power supply system {4}
103  DF  .~.~> Cable or cable suspension arrangement
104  DF  .~.~> With power regulation {1}
107  DF  .~.~> With magnetically influenced arc
108  DF  .~.~> D.C. power

DEFINITION

Classification: 373/102

Power supply system:

(under subclass 60) Subject matter including means to provide electric power for the arc.

SEE OR SEARCH CLASS

219, Electric Heating,

130.1+, for details of power supplies for electric heating arc devices.

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for systems for supplying electric current to arc furnaces provided that the arc furnace is only nominally disclosed.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

530+, for miscellaneous circuits with specific source of supply or bias voltage.