US PATENT SUBCLASS 322 / 76
.~.~.~ Plural impedances

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}
75  DF  .~.~ Control by circuit impedance {3}
76.~.~.~ Plural impedances {2}
77  DF  .~.~.~.~> Bridge arrangements
78  DF  .~.~.~.~> Tuned or resonant

DEFINITION

Classification: 322/76

(under subclass 75) Subject matter wherein the generator excitation circuit impedance control involves plural impedances.

(1) Note. This subclass takes arrangements wherein there are a plurality of different impedances in the field circuit. A sectionalized impedance is not considered to be a plurality of impedances (e.g., a plurality of resistance sections connected in series with means for controlling the number of sections in the field circuit would be searched in subclass 80).

SEE OR SEARCH THIS CLASS, SUBCLASS:

80+, see note 1 above.

SEE OR SEARCH CLASS

318, Electricity: Motive Power Systems,

534, for motor control by plural field circuit impedances. 320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclasses, particularly

123, for a battery or capacitor charging or discharging system including a generator.

323, Electricity: Power Supply or Regulation Systems,

364, for impedance systems involving plural impedances.