Mechanical capacitor

Details Mechanical capacitor Mechanical capacitor

1994-09-07

1997-07-01

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

3612831, 361287, 361290, 361291, B41J 2085, H01G 500

Patent

active

056443498

ABSTRACT:
A mechanical capacitor includes a fixed electrode, a movable electrode separated from the fixed electrode by a gap, a spring attached to the movable electrode suspending it above the fixed electrode, opposing the fixed electrode and an insulator formed over either the fixed or the movable electrode in between the two electrodes. The movable electrode, the gap, the insulator and the fixed electrode form a mechanical capacitor. The capacitance of the mechanical capacitor is changed by applying a control voltage between the movable and the fixed electrodes. When a control voltage across the mechanical capacitor is increased, the movable electrode moves closer to the fixed electrode, which causes the mechanical capacitor capacitance to increase. When the control voltage across the mechanical capacitor is decreased, the movable electrode is moved farther away from the fixed electrode by the operation of the spring. This movement of the movable electrode away from the fixed electrode decreases the capacitance of the mechanical capacitor.

REFERENCES:
patent: 3681600 (1972-08-01), Rigden et al.
patent: 4369483 (1983-01-01), Shirakawa
patent: 4782350 (1988-11-01), Smith et al.
patent: 4980741 (1990-12-01), Temple
patent: 5038184 (1991-08-01), Chiang et al.
patent: 5075600 (1991-12-01), El-Hamamsy et al.
patent: 5544001 (1996-08-01), Ichiya et al.

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