US PATENT SUBCLASS 322 / 72
.~.~ Control by electric space discharge

Current as of: June, 1999
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322 /   HD   ELECTRICITY: SINGLE GENERATOR SYSTEMS

44  DF  GENERATOR CONTROL {11}
59  DF  .~ With excitation winding and/or circuit control {11}
72.~.~ Control by electric space discharge {2}
73  DF  .~.~.~> Discharge control discharge device
74  DF  .~.~.~> Electric arc

DEFINITION

Classification: 322/72

(under subclass 59) Subject matter wherein the generator excitation circuit is controlled by means of one or more electric space discharge devices.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for systems for controlling the operation of electric lamps and gas or vapor discharge devices.

318, Electricity: Motive Power Systems, and 532, for motor control by space discharge device in field circuit.

323, Electricity: Power Supply or Regulation Systems,

227, and 291, for space discharge device regulating systems. 327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

518+, for miscellaneous control circuits utilizing an electronic space discharge device.

388, Electricity: Motor Control Systems, art collections 913+ for motor control systems including space discharge devices.