High voltage coil having split plastic tubes

Details High voltage coil having split plastic tubes High voltage coil having split plastic tubes

1990-11-07

1991-07-02

Kozma, Thomas J.

Inductor devices

Coil or coil turn supports or spacers

Coil turns cemented to support or embedded in plastic

29605, 336206, 336208, H01F 2730

Patent

active

050289055

ABSTRACT:
A high voltage coil manufactured by alternately winding coils and mounting rigid insulating tubes on a coil form having end plates with terminals. After each coil is wound with its ends terminated at the end plates, a first axially slitted insulator tube is snapped over the coil with about a one-quarter inch gap and a second tube with no gap is snapped over the first rotationally displaced 180 degrees enclosing the gap which forms a flow conduit. Another coil is wound on the second tube and the process is repeated to form as many as six coils. Potting material is applied to the completed assembly and vacuum impregnated, and the tube conduits form flow paths to achieve complete impregnation.

REFERENCES:
patent: 1495823 (1924-05-01), Underhill
patent: 1529973 (1925-03-01), Underhill
patent: 2392790 (1946-01-01), Webb
patent: 3358256 (1967-12-01), Naito et al.
patent: 4768856 (1988-09-01), Hofmann et al.

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