Vacuum-assisted potting of fiber module tubesheets

Details Vacuum-assisted potting of fiber module tubesheets Vacuum-assisted potting of fiber module tubesheets

2007-07-10

2010-02-16

Nguyen, Khanh (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

C264S553000, C264S566000, C264S568000, C264S571000, C264S101000, C264S004300, C264S046800, C264S271100, C264S279000, C264S272150, C264S274000

Reexamination Certificate

active

07662333

ABSTRACT:
A tubesheet is formed at the end of a module containing polymeric material for gas separation, by immersing the end of the module in an epoxy material, or its equivalent. A vacuum, or partial vacuum, applied at or near the opposite end of the module, tends to draw the epoxy material towards the source of the vacuum, and results in a tubesheet having a desired thickness, even though the epoxy material may have relatively high viscosity. The method produces effective tubesheets, while minimizing the degree to which the tubesheet covers the otherwise useful surface area of the polymeric material. The method thus produces gas-separation modules having enhanced productivity.

REFERENCES:
patent: 4248648 (1981-02-01), Kopp
patent: 5192478 (1993-03-01), Caskey
patent: 6766817 (2004-07-01), da Silva
patent: 6918404 (2005-07-01), da Silva
patent: 7066586 (2006-06-01), da Silva
patent: 7285255 (2007-10-01), Kadlec
patent: 2005/0082716 (2005-04-01), Barefield et al.
patent: 2006/0266217 (2006-11-01), Jensvold

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