Method of manufacturing a variable capacitor

Details Method of manufacturing a variable capacitor Method of manufacturing a variable capacitor

1975-10-17

1978-05-16

Goldberg, E. A.

Metal working

Electric condenser making

Solid dielectric type

361298, 427 79, 427242, H01G 506

Patent

active

040890937

ABSTRACT:
A method of manufacturing variable capacitors having dielectric-coated sheets. The dielectric is permanently connected to the sheets and is provided by vapor deposition before assembly of the capacitors. The dielectric is preferably a polyparaxylylene material.
Electrical contact between the rotor sheets is obtained by arranging the sheets on the rotor shaft with a slight press fit, with or without insertion of spacing rings.
Electrical contact between the stator sheets may be obtained by a scratching or grinding operation on the side of the stator stack, or by a layer of solder.

REFERENCES:
patent: 1533611 (1925-04-01), Respess
patent: 1652118 (1927-12-01), Guett
patent: 1719879 (1929-07-01), Ebon
patent: 3015765 (1962-01-01), Repko
patent: 3246627 (1966-04-01), Loeb
patent: 3252830 (1966-05-01), Cummin
patent: 3558803 (1971-01-01), Osborn
patent: 3861776 (1975-01-01), Deal
patent: 3911860 (1975-10-01), Nohynek

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