Variable trimmer capacitor

Details Variable trimmer capacitor Variable trimmer capacitor

1992-06-04

1993-07-20

Reynolds, Bruce A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

361278, H01G 500, H01G 501

Patent

active

052299112

ABSTRACT:
A variable electronic component in the nature of a trimmer capacitor has greatly increased voltage rating and capacitance range, while eliminating possible failure modes. An annular opening formed in a stationary electrode is surrounded by plastic dielectric material so as to receive in interference fit a circular sleeve of an opposing impedance varying electrode. By filling the air gap with plastic dielectric material, no air contributes to the effective dielectric, while at the same time, preventing shorting as a result of loose metallic particles which might be present.

REFERENCES:
patent: 3483450 (1969-12-01), Blickstein et al.
patent: 3675093 (1972-07-01), Russo et al.
patent: 3679940 (1972-07-01), Newman et al.
patent: 3757266 (1973-09-01), Newman et al.
patent: 4415949 (1983-11-01), Blickstein
patent: 4575779 (1986-03-01), Mittler et al.
patent: 4764843 (1988-08-01), Mittler
patent: 4876627 (1989-10-01), Mittler et al.
patent: 4953057 (1990-08-01), Davidian

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