US PATENT SUBCLASS 336 / 115
RELATIVELY MOVABLE COILS

Current as of: June, 1999
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336 /   HD   INDUCTOR DEVICES

115RELATIVELY MOVABLE COILS {5}
116  DF  .~> With means to change coil length and/or connections
117  DF  .~> With core {2}
121  DF  .~> Angularly and linearly movable coils
122  DF  .~> Angularly movable {3}
129  DF  .~> Movable along or parallel to other coil axis

DEFINITION

Classification: 336/115

(under the class definition) Inductor devices having two coils which are relatively movable with respect to each other.

(1) Note. Illustrative examples are: [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:

75+, for inductor devices having a coil and a closed coil which are relatively movable with respect to each other.

170+, 180+, 188, and 220, for inductor devices having plural, nonrelatively movable coils or windings.

323, Electricity: Power Supply or Regulation Systems, subclasses 216, 264, and 347 for inductor systems with movable structure or windings.

330, Amplifiers, subclasses 65+ for amplifiers combined with significant structural detail of any of the circuit elements which may include inductor structure; subclasses 171, 190, and 197 for amplifiers having transformer coupling including significant details of the transformer structure, subclass 169 for amplifiers having transformer coupling including means for adjusting such inductive coupling. 333, Wave Transmission Lines and Networks, subclasses 24+ for coupling networks, including filters, equalizers, and delay networks, having relatively movable coils, and especially subclasses 177+ for transformer coupled wave filters.

334, Tuners, subclasses 59+ for tuners having tuned transformer circuits which are substituted by switching in which the primary may remain stationary while the secondary

is moved relative to the primary, and subclasses 61+ for tuners having mutual inductance variable means which may be relatively displaceable coils.

428, Stock Material or Miscellaneous Articles, subclass 591 for metallic stock having parts which are relatively movable with respect to each other.