Transformer core mandrel

Details Transformer core mandrel Transformer core mandrel

1982-09-20

1985-07-16

Sheehan, John P.

Metallurgical apparatus

Means for holding or supporting work

29605, 2421184, 336213, C21D 300

Patent

active

045291772

ABSTRACT:
The invention provides a method and apparatus for spirally winding a magnetic core from at least one filament of magnetic material. Two congruent mandrel plates are mated together in facing relation to delimit a mandrel having an outer peripheral edge portion. An annular channel is formed in the edge portion to delimit at least one channel region having a preselected characteristic width dimension, and a plurality of graduated templates are optionally disposed about the mandrel edge portion to delimit at least one template region having a preselected characteristic width dimension. Filamentary magnetic material is then wound about the mandrel to fill the channel regions and any template regions, thereby producing the core.

REFERENCES:
patent: 2313306 (1943-03-01), Wiegand
patent: 2404237 (1946-07-01), Krizsan
patent: 2643828 (1953-06-01), Vincent
patent: 3218592 (1965-11-01), Barrick
patent: 3329374 (1967-07-01), Stanton
patent: 3503275 (1970-03-01), Morse
patent: 3940085 (1976-02-01), Campbell
patent: 4068808 (1978-01-01), King

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