Miniature high frequency coil assembly or transformer

Details Miniature high frequency coil assembly or transformer Miniature high frequency coil assembly or transformer

1978-05-19

1981-01-13

Kozma, Thomas J.

Inductor devices

With mounting or supporting means

336 83, 336 96, 336136, 336192, H01F 1502, H01F 2106

Patent

active

042452074

ABSTRACT:
An external core member is mounted on a dielectric substrate. The external core member is made of a magnetic material and is formed with a through bore. A coil member is disposed on the substrate and within the through bore. An elastic material casting is formed in the through bore and about the coil member, and having a core receiving bore formed therein. The core receiving bore is arranged coaxially with the longitudinal axis of the coil member so as to extend through the coil member at its center portion. A movable core of a magnetic material is movably retained in the core receiving bore.

REFERENCES:
patent: 2875419 (1959-02-01), Lear, Sr.
patent: 3223952 (1965-12-01), Slenker
patent: 3259861 (1966-07-01), Walker
patent: 3278877 (1966-10-01), Kameya et al.
patent: 3358255 (1967-12-01), Digilio
patent: 3458844 (1969-07-01), Hildebrandt
patent: 3500274 (1970-03-01), Matsuura et al.
patent: 3649939 (1972-03-01), Hildebrandt
patent: 3764947 (1973-10-01), Mazzochi et al.
patent: 4042899 (1977-08-01), Tomczak et al.

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