US PATENT SUBCLASS 318 / 495
.~ Plural, diverse or diversely controlled, armature or primary windings

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

494  DF  ARMATURE (OR PRIMARY) CIRCUIT CONTROL {9}
495.~ Plural, diverse or diversely controlled, armature or primary windings {4}
496  DF  .~.~> Polyphase windings
497  DF  .~.~> Series-parallel
498  DF  .~.~> Energized or controlled in predetermined sequence
499  DF  .~.~> Wound or energized in magnetic opposition

DEFINITION

Classification: 318/495

(under subclass 494) Subject matter in which two or more armature or primary windings are provided on the motor and (1) in which one or more of the windings are substantially different structurally from one or more others of the windings (including being different with respect to composition of winding, arrangement or shape of the winding, or physical dimensions thereof) or (2) in which one or more of the windings are controlled substantially differently from one or more others of the windings (including control at different time, different degrees of excitation, different kinds or types of energizing currents, or polarized differently).

(1) Note. As examples only, the following windings, are considered plural, diverse or diversely controlled windings within the meaning of this class: (I) Structurally unitary winding in which connections are made to conduct current from a point intermediate the ends thereof to either end selectively or to both ends simultaneously, regardless of the relative polarity of the individual turns of the winding or the number of turns thereof on either side of the intermediate point of connection. (II) Structurally unitary winding in which some of the turns thereof are polarized differently from some of the other turns.

(2) Note. As examples only, the following windings are not considered plural, diverse or diversely controlled windings within the meaning of this class: (I) Structurally unitary windings in which all turns are polarized relatively the same (as determined when a polarizing current is conducted from one end of the winding to the other) and in which: (a) External connections are made so that current can be conducted through the winding from a point of the winding to one or more other points in the same direction along the winding, or (b) External connections are made to conduct current through the winding from any point of the winding to another point thereof and means are provided to shunt or by-pass the current around one or more turns intermediate the points at which the above external connections are made; (II) Structurally independent windings which are physically separated from each other but which in all other respects are not substantially different or are not controlled substantially differently with respect to each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

122, for this subject matter where the motors are reciprocating or oscillating motors having plural windings.

288, for this subject matter in motor reversing systems where the motors have plural armature or primary windings. 770, and the subclasses specified in the Notes to those subclasses for this subject matter where the motors are induction motors having plural primary windings.

781, for this subject matter where the motors are single phase motors having auxiliary primary windings for starting and/or running purposes.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure,

127, for dynamoelectric devices having two or more current collecting means, such as commutators or sets of slip rings, connected to different windings of the devices.

322, Electricity: Single Generator Systems,

90, for generator systems where the generator has plural armature circuits or windings.