US PATENT SUBCLASS 315 / 286
.~.~.~.~ Biased movable part with supply current controlled movement

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  DF  .~.~.~ Relatively movable core and coil-type inductance {1}
286.~.~.~.~ Biased movable part with supply current controlled movement

DEFINITION

Classification: 315/286

(under subclass 285) Systems wherein the movable (coil or core) part is biased against movement by suitable biasing means, such as a spring or weight, the relative movement of the coil and core or the core parts being brought about by variations of the magnetic flux generated by the variations of the current in the coils, the value of the current in the supply circuit being thereby less dependent upon changes in the resistance of the load device.

SEE OR SEARCH CLASS

336, Inductor Devices,

40+, for the structure of inductive impedances which have a biased movable coil or core, the position of the movable part being controlled by the current in the impedance.