US PATENT SUBCLASS 307 / 401
NONLINEAR REACTOR SYSTEMS (E.G., SATURABLE)

Current as of: June, 1999
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307 /   HD   ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS

401NONLINEAR REACTOR SYSTEMS (E.G., SATURABLE) {11}
402  DF  .~> Parametrons {3}
406  DF  .~> Magnetic flip-flops
407  DF  .~> Logic circuits {4}
412  DF  .~> Driver circuits
413  DF  .~> Signal sensor (e.g., current or frequency)
414  DF  .~> Magnetic trigger devices
415  DF  .~> Magnetic switching circuits
416  DF  .~> Amplifiers using nonlinear reactors (i.e., magnetic amplifiers) {2}
419  DF  .~> Magnetic pulse generator {2}
422  DF  .~> Multiaperture {1}
424  DF  .~> Parametric frequency converter

DEFINITION

Classification: 307/401

NONLINEAR REACTOR SYSTEMS (E.G., SATURABLE):

(under the class definition) Subject matter comprising a nonlinear reactor which is a magnetic core reactor, the reactance of which is controlled by changing the saturation of the core by varying a superimposed unidirectional flux.

(1) Note. This is the miscellaneous subclass for nonlinear reactor (e.g., saturated inductor ferrite dielectric) systems not elsewhere classified. The field of search should in every instance extend to the class which relates to the environment in which the system might be found, since a system such as, for example, an oscillator or amplifier, which is classifiable in another class on the basis of the overall function of the system is not classifiable in this subclass (Class 307, subclasses 401+) merely because the system utilizes a nonlinear reactor. This subclass will, however, take those portions of the nonlinear reactor systems which are so incomplete as not to furnish a basis for classification in any other class.

(2) Note. Amplifiers having an active element which is a nonlinear reactor means are classified in Class 330, subclasses 7 and 8 for capacitive type and saturable reactor type amplifier devices, respectively. In general use with such devices is an a.c. power supply source. Where no filter is claimed to remove such a.c., components from the output signal, classification is herein and not in amplifiers. However, where a "demodulator" or "detector" is claimed instead of a rectifier and such filter means are disclosed but not claimed classification is in Class 330 with amplifiers. See class definitions thereof, sections VI and VII.

(3) Note. Saturable reactor type shift registers and counters can be found in the appropriate subclass in Class 365.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104, for highly inductive systems.

SEE OR SEARCH CLASS 323, Electricity: Power Supply or Regulation Systems,

249, 302, 310, and 329 for saturable inductor voltage regulating systems.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses for miscellaneous systems employing space discharge active element devices.

329, Demodulators,

341+, for a frequency demodulator with pulse forming circuits (e.g., counter type) which may include a saturable reactor.

330, Amplifiers,

4.5+, for para- metric amplifiers; and subclasses 7 and 8 for capacitive and saturable reactor type amplifiers. See (3) Note above.

331, Oscillators,

107, for solid-state active element type oscillators wherein the active element may comprise ferromagnetic or ferroelectric material in the solid state.

333, Wave Transmission Lines and Networks,

80, for negative resistance networks.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, 227, for electromagnets with armature of the saturable magnetic type.

336, Inductor Devices,

155+, for inductive regulators (e.g., saturable type of high leakage reactance type).

365, Static Information Storage and Retrieval, appropriate subclasses for static reactor type memory systems.