Electricity: circuit makers and breakers – Liquid contact
Reexamination Certificate
2008-04-29
2008-04-29
Mai, Anh (Department: 2832)
Electricity: circuit makers and breakers
Liquid contact
C200S193000
Reexamination Certificate
active
11358627
ABSTRACT:
The delivery of liquid to a device, for example, a microswitch, can be achieved without the application of external pressure to the liquid by using capillary action to cause the liquid to move as desired. In one embodiment, at least one channel having a wettable surface is created that allows liquid metal to flow into a measuring reservoir without the liquid metal being pressurized and without applying other external forces on the liquid metal to facilitate its movement. A portion of the channel between the wettable channel and the reservoir is non-wettable and this non-wettable area, while allowing the metal to flow into the reservoir, acts to prevent the liquid from back-flowing from the reservoir to the channel. In one embodiment pressurized gas can be generated and applied to the liquid in the reservoir to facilitate the movement of the liquid from the reservoir to the switch cavity.
REFERENCES:
patent: 7211754 (2007-05-01), Wang et al.
patent: 2006/0024504 (2006-02-01), Nelson et al.
patent: 2006/0160206 (2006-07-01), Holmquist et al.
patent: 2006/0164490 (2006-07-01), Kim et al.
patent: 2006/0260919 (2006-11-01), Aimi et al.
U.S. Appl. No. 11/130,846.
U.S. Appl. No. 11/130, 846.
Agilent Technologie,s Inc.
Klaus Lisa
Mai Anh
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