Intermittent gas flow apparatus and membrane separation...

Details Intermittent gas flow apparatus and membrane separation... Intermittent gas flow apparatus and membrane separation...

2009-01-08

2011-10-18

Nguyen, Nam (Department: 1778)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S321690, C137S583000

Reexamination Certificate

active

08038882

ABSTRACT:
Intermittent gas flow and membrane separation apparatus and methods of use including an internal gas chamber including an upper wall; at least one inlet for supplying gas to the internal gas chamber; a column pipe that extends above the upper wall of the internal gas chamber, the column pipe including a lower end portion including a lower end portion opening in the internal gas chamber, the column pipe linking the internal gas chamber to an area external to the internal gas chamber for fluid flow between the internal gas chamber and the external area; an auxiliary pipe including one end portion connected to the column pipe for fluid flow between the auxiliary pipe and the column pipe, and another end portion branched off from the column pipe, the another end portion including an opening located in the internal gas chamber at a position higher than the lower end portion opening of the column pipe by a predetermined height; and an auxiliary pipe external tubular member including a closed end, the auxiliary pipe external tubular member surrounding the another end portion of the auxiliary pipe with the closed end being positioned below the opening in the another end portion of the auxiliary pipe, and spaced from the another end portion by a predetermined distance permitting fluid flow into the space between the wall of the tubular member and the auxiliary pipe.

REFERENCES:
patent: 6245239 (2001-06-01), Cote et al.
patent: 7017557 (2006-03-01), Rumpf
patent: 2005/0006308 (2005-01-01), Cote et al.
patent: 7-185270 (1995-07-01), None
patent: 9038470 (1997-02-01), None
patent: 2004-322100 (2004-11-01), None
patent: WO2004050221 (2004-06-01), None
patent: 2008/153818 (2008-12-01), None
Chinese Office Action issued with respect to Chinese Patent App. No. 200910001522.2, dated Mar. 21, 2011.
English language Abstract of JP 7-185270.
English language Abstract of JP 2004-322100.

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