Inductor with conducting core of sintered powdered metal

Details Inductor with conducting core of sintered powdered metal Inductor with conducting core of sintered powdered metal

1978-07-26

1980-02-12

Kozma, Thomas J.

Inductor devices

With closed coil or conductor member

Movable with respect to another coil

428553, 428555, H01F 2104

Patent

active

041886038

ABSTRACT:
A sintered powdered aluminum core for an inductor used in the tuning stages of high frequency equipment is disclosed. Such cores have threads ground on them having sharp thread profiles, as opposed to the flat thread profiles produced by screw machines, and plating the cores produces superior electrical properties.

REFERENCES:
patent: 2403349 (1946-07-01), Dolberg
patent: 3346951 (1966-02-01), Gwyn, Jr.
patent: 3388362 (1968-06-01), Raffaelli
patent: 3564708 (1971-02-01), Harris
patent: 3719902 (1973-03-01), Esterly
patent: 3947934 (1976-04-01), Olson
patent: 4010536 (1977-03-01), Fujita et al.
patent: 4034325 (1977-07-01), Zarkov
"Porous Aluminum Bearings," S. St or Chheim, Product Engineering, Apr. 2, 1962, pp. 53-55.

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