Breakage-resistant capacitor leads

Details Breakage-resistant capacitor leads Breakage-resistant capacitor leads

1989-01-30

1989-09-26

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

H01G 114

Patent

active

048705373

ABSTRACT:
A cylindrical capacitor (20) has lead terminal wires (46, 48) bonded to respective distally opposite ends (28, 30) and extending oppositely axially through the hollow center (32) of the capacitor and out the other end of the capacitor for external circuit connection. Each lead terminal wire has a spiral wound end (58, 62) attached to the respective capacitor end, and a lead portion (60, 64) extending integrally therefrom and axially through the capacitor. Staggered length integral insulators (34, 36) extend through the capacitor and around respective axially extending lead wires and have respective ends (50, 54) extending axially through respective spiral wound ends of the leads. The ends of the insulators are heat staked (70, 72) against respective annular washers (66, 68) to hold the leads in compression against the ends of the capacitor.

REFERENCES:
patent: 239370 (1881-03-01), De Forest
patent: 2101896 (1937-12-01), Burlingame
patent: 3986084 (1976-10-01), Carter et al.
"High-Frequency Vibration Testing of Film Capacitors", Mannheim et al, Sprague Electric Company Technical Paper, TP 84-2, Mar. 8, 1984.
"A-C Application of Plastic-Film Capacitors", Kowalsky et al, Sprague Electric Company Technical Paper, TP 83-4, Mar. 9, 1983.
"Capacitors", Donald M. Trotter, Jr., Scientific American, Jul. 1988, pp. 86-90B.

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