Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1978-12-28
1980-12-16
Goldberg, E. A.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
29 2542, 219121LJ, 361308, 361309, 361323, H01G 1015
Patent
active
042401275
ABSTRACT:
A rolled metallized film capacitor is manufactured by completely metallized one surface of each of a pair of dielectric films, and advancing the films while laser scribing patterns of demetallized lines on the respective films which are wound together to provide a pair of capacitor plates of finite areas. As the films are advanced the laser scribing is controlled so that when the films are wound together, the lines on the respective films are in overlaying relationship on the core and peripheral windings, and are diverted to opposed marginal edge portions of the respective films on the intervening windings. When the rolled capacitor films are terminated and connected to a power source the opposed metallized areas on the core and peripheral windings are subjected to equal potentials, whereas the remainder of the windings present two metallized areas between the opposed margin lines which are subjected to potential of opposite polarity to accumulate charges and function as capacitor plates.
REFERENCES:
patent: 2683792 (1954-07-01), Dublier
patent: 2716180 (1955-08-01), Dublier
patent: 2727297 (1955-12-01), Fralish
patent: 3486221 (1969-12-01), Robinson
patent: 3597579 (1971-08-01), Lumley
patent: 3786224 (1974-01-01), Heywang
patent: 3790744 (1974-02-01), Bowen
patent: 3939440 (1976-02-01), Berg
"2-Lead Dip Ceramic Caps B Aux" in Electronic News, 10/76, p. 48.
Fanning William J.
Masopust, Jr. Otto T.
Goldberg E. A.
Miller R. P.
Western Electric Company Inc.
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