US PATENT SUBCLASS 322 / 89
.~ With armature or primary circuit control

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

44  DF  GENERATOR CONTROL {11}
89.~ With armature or primary circuit control {5}
90  DF  .~.~> Plural armature circuits or windings
91  DF  .~.~> Short-circuiting of windings {1}
93  DF  .~.~> Tapped or sectionalized
94  DF  .~.~> Circuit-making and/or breaking
95  DF  .~.~> By armature circuit impedance {2}

DEFINITION

Classification: 322/89

(under subclass 44) Subject matter wherein the generator is controlled by controlling the armature circuit, or the primary circuit of the generator.

(1) Note. Since the armature circuit or primary circuit of the generator may be extended to a system of distribution, to a load circuit or to a load device, see the class definition, especially section I, D, for the general line between Class 322 and other classes which have generator supplied load circuits, or systems of distribution or load devices. This and the indented subclasses include the generator supplied systems in Class 322 which are not classified in the subclass above and which have means in the armature circuit for controlling the generator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for generator control systems within the class definition having means to control the polarity of the generator.

7, for generator control systems within the class definition where both the generator and the load circuit are controlled. See note 1 to the definition of subclass 89.

14, for generator control systems within the class definition where both the generator and the generating driving means are controlled.

17+, for this subject matter where the armature circuit is automatically controlled in response to a condition. 45, for generator control under subclass 44 where the generator control is effectuated by a plurality of diverse controls one of which may be controlling the armature or primary circuit.

47, for this subject matter where the generator is an induction type generator.

48, for this subject matter where the generator is an acyclic or homopolar generator.

49, for generator control under subclass 44 where the generator is controlled by controlling the structure of parts which form at least a part of the magnetic circuit of the generator, see indented subclass 51 where the magnetic structure so controlled is the rotating member of the generator (i.e., either the armature or field), and indented subclass 52 where the magnetic structure so controlled is the stator element of the generator (i.e., either the armature or the field).

53, for generator control under subclass 44 where the generator is provided with an odd number of brushes (i.e., has an auxiliary brush), and the generator control means includes an armature winding or a portion thereof connected to a short circuit between the odd or auxiliary brush and one of the load brushes.

54+, for generator control systems under subclass 44 where the generator control includes means to adjust the current collecting mechanism (i.e., brushes).

57, for generator control systems under subclass 44 where the control includes means for saturating at least a portion of the generator magnetic structure by means of a winding which is in noninductive relationship to the armature and field windings.

58, for generator control systems under subclass 44 where the system includes means (such as a filter) for eliminating, suppressing, or minimizing undesired frequencies.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

112+, for switching systems. 318, Electricity: Motive Power Systems,

706, for synchronous motor synchronizing systems with armature winding removal upon failure to synchronize or loss of synchronism; subclass 709 for synchronous motor synchronizing systems having different armature winding voltage prior to synchronism; subclasses 720+ for armature circuits for synchronous motor systems; subclasses 767+ for primary circuit control of induction motors; subclasses 287+, for motor reversing by armature circuit control, and subclass 494, for motor control by armature circuit control.

320, Electricity: Battery or Capacitor Charging or Discharging, appropriate subclasses, particularly

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

388, Electricity: Motor Control Systems,

800+, and 825+ for motor speed control systems and 842+ and 848+ for motor acceleration control systems.