Fluent material handling – with receiver or receiver coacting mea – Processes – Gas or variation of gaseous condition in receiver
Reexamination Certificate
2005-01-18
2005-01-18
Douglas, Steven O. (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
Processes
Gas or variation of gaseous condition in receiver
C141S011000, C141S069000, C141S192000, C137S803000
Reexamination Certificate
active
06843281
ABSTRACT:
The present invention is directed to methods and apparatus for removing a gaseous bubble confined in a microvolume of liquid in a chamber. A source of liquid, a barrier region and an exit region are provided in fluid communication with the chamber. The source of liquid has an energy potential as regards movement of the gaseous bubble that is higher than the energy potential of the barrier region, the barrier region has a higher energy potential than the chamber, and the chamber has a higher energy potential than the exit region. The energy potential is reduced within the chamber, the source of liquid, the barrier region, and the exit region by an amount such that the energy within the gaseous bubble is sufficient to displace the gaseous bubble from the chamber through the barrier region and out the exit region and to fill the chamber with the liquid from the source.
REFERENCES:
patent: 6360775 (2002-03-01), Barth et al.
patent: 6365378 (2002-04-01), Hirota et al.
U.S. patent application Publication: U.S. 2002/0115101 A1; Aug. 22, 2002.
U.S. patent application Publication: U.S. 2002/0122748 A1; Sep. 5, 2002.
Barth Phillip W.
Yefchak George E.
Agilent Techinologies, Inc.
Douglas Steven O.
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