Filter module and process for manufacture of same

US7938275B2 · kind B2 · utility

Assignee

• Pall Corporation · US

Inventors

• Wolfgang Diemer · Schwäbisch Gmünd, DE
• Martin Zeiler · Schwäbisch Gmünd, DE

Key dates

• Filing date: Jul 26, 2006
• Grant date: May 10, 2011
• Expiry date: Nov 13, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1033
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention provides a filter module comprising a body of wound layers of a sheet material, said sheet material having a plurality of openings formed therein, said channels within the wound layers of sheet material of said body, said channels extending in a direction from the inner peripheral surface to the outer peripheral surface, a first type of channels being open at one end at said outer peripheral surface of the body and closed at the other end located adjacent to said inner peripheral surface, a second type of channels being open at one end at said inner peripheral surface of the body and closed at the other end located adjacent to said outer peripheral surface, said channels of the one type being separated from the channels of the other type by portions of sheet material wherein a majority of the openings of a layer of sheet material forming the inlet channels incompletely register with corresponding openings of an adjacent layer and a process for manufacture such filter module.