Filter structure, filter panel comprising the filter...

Details Filter structure, filter panel comprising the filter... Filter structure, filter panel comprising the filter...

2004-01-20

2009-11-24

Smith, Duane (Department: 1797)

Gas separation: apparatus

Solid sorbent apparatus

Layered or laminated

C096S134000, C096S135000, C055S524000

Reexamination Certificate

active

07621989

ABSTRACT:
A pleatable filter structure for use in a filter panel, containing ion exchange particles distributed within a fibrous framework is expanded to contain enough space to allow the ion exchange particles to swell or to be in a swelled state as compared to dry ion exchange particles, without additional expansion of the filter structure. A method of manufacturing the filter structure involves subjecting the filter structure to a moisture treatment in which it is exposed to a humid or water containing environment, whereby the ion exchange particles swell and cause a permanent expansion of the filter structure.

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“Japanese Application Serial No. 2006-500756, Official Action mailed Feb. 13, 2009”, 8 pgs.

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