Tunable-inductance magnetically-soft ferrite core structures

Details Tunable-inductance magnetically-soft ferrite core structures Tunable-inductance magnetically-soft ferrite core structures

1982-11-05

1985-12-10

Kozma, Thomas J.

Inductor devices

Core forms casing

29608, 26427219, 336136, H01F 1502, H01F 2106

Patent

active

045582955

ABSTRACT:
New ferrite tuning assemblies are disclosed in which a unitary ferrite shaft is covered with a nonmagnetic material to provide a peripheral working surface for coacting with unitary helical thread means in the central opening of a core element to provide axial movement, for air gap adjustment purposes, by cutting and/or deforming at least a portion of the peripheral working surface of the tuning member. Various longitudinal and transverse cross-sectional configurations for the integral male tuning member are made available by the fabrication and assembly methods taught; assembly of inductance-tunable ferrite devices is facilitated by enabling insertion of a male tuning member into the central opening of either core element in an assembly and tuning from either longitudinal end of the aligned central openings.

REFERENCES:
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patent: 3528047 (1970-09-01), Iwata
patent: 3593245 (1971-07-01), Iwata
patent: 4150278 (1979-04-01), Resener

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