Capacitor forming and manufacturing method
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United States of America Patent
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-
Aug 4, 1987
Grant Date -
N/A
app pub date -
Apr 25, 1985
filing date -
Apr 25, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved metallized wrapped capacitor pressed into a predetermined cross-sectional form substantially without edge radii, together with its method of manufacture are disclosed. The capacitor is formed from elongated mated dielectric webs, each having an electrode deposited on its face. The webs are superposed and rolled into a coil having concentric turns. The coil is pressed into a mold to derive a cross-section that mates with electrically conductive end caps. The end caps are affixed physically and electrically at each end of the formed capacitor element. The entire assembly with the exception of portions of the end caps are subjected to vacuum impregnation of epoxy resin to provide physical strength and to provide environmental protection. A form of coil mold is described.
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