US PATENT SUBCLASS 322 / 44
GENERATOR CONTROL

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

44GENERATOR CONTROL {11}
45  DF  .~> Combined diverse generator controls
46  DF  .~> Combined permanent magnet and wound field structure
47  DF  .~> Induction generator
48  DF  .~> Acyclic or homopolar-type generator
49  DF  .~> Magnetic structure {3}
53  DF  .~> Odd number of brushes (e.g., 3rd brush type)
54  DF  .~> Adjustable current-collecting mechanism {1}
57  DF  .~> With nonexciting saturating means for generator structure
58  DF  .~> With means for suppressing, eliminating or minimizing undesired frequencies
59  DF  .~> With excitation winding and/or circuit control {11}
89  DF  .~> With armature or primary circuit control {5}

DEFINITION

Classification: 322/44

(under the class definition) Subject matter and not classified in one of the preceding subclasses wherein the generator system is controlled by controlling the generator.

(1) Note. See Lines With Other Classes, "Nonelectrical Means Controlling the Generator" of the class definition for a reference to the nonelectric control system for generators included in this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2, for this subject matter where the electric generator is not of the electromagnetic induction type.

3, for this subject matter where the generator is a reciprocating and/or oscillating type generator.

4, for this subject matter where the generator is provided with flywheels or massive moving parts. 5+, for this subject matter where the polarity of the output voltage of the generator is controlled.

7, for this subject matter where the system includes control of the generating means and control of the output circuit.

9, for this subject matter where the generator is provided with a plurality of driving means.

10+, for this subject matter where means are provided for stopping or starting the generator (putting the generator into service or stopping the generator).

14+, for this subject matter where there is also control of the generator driving means.

17+, for this subject matter where the system includes automatic control means for the generator.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems,

302+, and the subclasses specified in the notes to the definitions of subclasses for generator supplied lamps and gas or vapor discharge device systems, the generator being provided with control means.

330, Amplifiers, particularly

58, for amplifiers having a dynamoelectric machine as the active element.