US PATENT SUBCLASS 315 / 285
.~.~.~ Relatively movable core and coil-type inductance

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

246  DF  PULSATING OR A.C. SUPPLY {10}
283  DF  .~ Inductance in the supply circuit {1}
284  DF  .~.~ Variable inductance {1}
285.~.~.~ Relatively movable core and coil-type inductance {1}
286  DF  .~.~.~.~> Biased movable part with supply current controlled movement

DEFINITION

Classification: 315/285

(under subclass 284) Systems wherein the inductance coil is provided with a magnetic core, (1) the coil and the core being arranged so as to have free relative movement with respect to each other, or (2) the core being made of two or more parts, at least one of the core parts being arranged so as to have free relative movement with respect to another of the core parts so as to vary the magnetic reluctance of the core, so that the current through the coil is more or less relatively impeded depending on the relative positions which the core and coil or the core parts occupy.

SEE OR SEARCH THIS CLASS, SUBCLASS:

281, for systems having a relatively movable core and coil type transformer in the supply circuit.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

264, and 347, for miscellaneous reactor systems and systems for controlling the magnitude of the current and/or voltage

in a single circuit by means of a reactor, the reactor having a movable coil and/or core. 336, Inductor Devices,

115+, and the subclasses specified in the Notes thereto for the structure of inductive impedances having relatively movable coils, and subclasses 130+ and the subclasses specified in the Notes thereto for inductive impedances having a relatively movable core and coil and subclasses 155+ for inductive impedances of the regulating type which do not have moving parts (e.g., saturating type).