.~ Coil connections changed by moving coil (e.g., coil substitution)
DEFINITION
Classification: 336/142
(under subclass 137) Subject matter wherein the inductor device includes a plurality of coils with separate electrical contacts or a coil having contact means (e.g., taps) for making contact with the coil at different places and a supporting structure for the coils or coil, the supporting structure being provided with electrical contacts for making contact with less than all of the coils or with means for making contact at different places on the coil, the plurality of coils or the tapped coil being movably supported with respect to the supporting structure, and the coils or coil and supporting structure being designed so that as the coils or coil is moved, different coils or coil contacts can be moved into circuit making relation with the contacts in the supporting structure.
(1) Note. In the devices in this and the indented subclass, the structure is designed for changing coils in the circuit or for varying the amount of coil conductor in the circuit. The distinguishing feature is that the coil change or conductor length is changed by moving the coils or coil, rather than by having the coils or coil stationary and moving a contactor (e.g., switch into contact with the coil terminals or along the coil.
(2) Note. Where the device has a plurality of coils, the coils must be arranged so as not to be movable with respect to each other when in circuit making relation with the contacts so as to vary the effective inductance of the device. If the effective inductance of the device can be changed by moving the coils relative to each other, see subclasses 115+ above.
(3) Note. An illustrative example is: [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
15, for inductor devices where the length of the coil conductor is changed by winding or unwinding the conductor on the coil. 115+, for inductor devices which are provided with relatively movable coils for changing the effective inductance of the device.
149, for inductor devices where the effective length of the coil conductor is changed by sliding a contactor along the coil winding.
150, for inductor devices wherein the inductor is provided with taps and a tap changing switch is provided.
SEE OR SEARCH CLASS
323, Electricity: Power Supply or Regulation Systems,
255, 340, and 354 for miscellaneous impedance systems wherein a plurality of impedances (e.g., inductor devices) are provided and means are provided for selecting the impedance which may be included in the circuit.
331, Oscillators,
179, for oscillator systems wherein the generated oscillation frequency may be changed in discrete steps by inductance coil substitution.
