Ferromagnetic multiple shell core for electric coils

Details Ferromagnetic multiple shell core for electric coils Ferromagnetic multiple shell core for electric coils

1986-02-03

1987-06-23

Kozma, Thomas J.

Inductor devices

Core forms casing

336120, 336212, 336215, 336DIG2, H01F 2724, H01F 2730

Patent

active

046756388

ABSTRACT:
A ferromagnetic multiple shell core for a plurality of electric coils has multiple recesses arranged concentrically with respect to one another and separated from one another by concentrically arranged side walls. A central core is provided at a center-point of the concentrically arranged recesses and side walls. The base of the cylindrical shell core has appropriate thickness below each recess to minimize radial tapering of magnetic flux.

REFERENCES:
patent: 2212543 (1940-08-01), Jovy
patent: 2779926 (1957-01-01), Johnson et al.
patent: 3196373 (1965-07-01), Jones et al.
patent: 3586964 (1971-06-01), Strauch
patent: 3667342 (1972-06-01), Warnock et al.
patent: 4041431 (1977-08-01), Enoksen
"Design of Rotary Transformer", Sakata et al., National Technical Report, vol. 18, No. 4, Aug. 1972, pp. 357-369.

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