Fluidic based variable capacitor for use in a fluidic...

Details Fluidic based variable capacitor for use in a fluidic... Fluidic based variable capacitor for use in a fluidic...

2011-01-18

2011-01-18

Thomas, Eric (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

C361S278000, C361S280000

Reexamination Certificate

active

07872851

ABSTRACT:
One embodiment of the present invention relates to a variable capacitor that operates without moving mechanical parts. In this capacitor electrically conductive electrodes are separated by an enclosed chamber filled with an electrically conductive material. The electrically conductive material can freely vary its position within the chamber. The capacitance of the device will vary as position of the conductive material changes due to external mechanical motion (ex: rotation vibration, etc.) of the device. Other embodiments of this device are also disclosed.

REFERENCES:
patent: 3218526 (1965-11-01), Tuttle
patent: 3610970 (1971-10-01), Skinner
patent: 4054826 (1977-10-01), Wahlstrom
patent: 4126822 (1978-11-01), Wahlstrom
patent: 4624140 (1986-11-01), Ekchian et al.
patent: 5092171 (1992-03-01), Wallrafen
patent: 7088567 (2006-08-01), Hunt et al.
patent: 2004/0253123 (2004-12-01), Xie et al.
patent: 2008/0089005 (2008-04-01), Choi et al.

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