Liquid purification or separation – Processes – Separating
Reexamination Certificate
2007-07-24
2007-07-24
Popovics, Robert James (Department: 1724)
Liquid purification or separation
Processes
Separating
C210S335000, C210S438000, C210S440000, C210S443000, C210S446000, C210S450000, C210S455000, C210S456000, C210S489000
Reexamination Certificate
active
09913977
ABSTRACT:
A depth filter design is disclosed which has little if any open void area upstream of the media. Preferably, it also has little if any open void area downstream of the media as well. A preferred embodiment uses layers of stacked, fibrous media with several of the layers being separated from the others by spacers which serve to compress the media and to prevent the bypass of fluid around the media adjacent the inner wall of the housing. Several designs for attaching the end caps which allow for the compression of the media are also disclosed.
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Gagne George A.
King Kenneth
Lin Zhenwu
Perivolotis George
Proulx Stephen
Entegris, Inc.
King Timothy J.
Pillion John E.
Popovics Robert James
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