Filter module and process for manufacture of same

US8240483B2 · kind B2 · utility

Assignee

• Pall Corporation · US

Inventors

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

Key dates

• Filing date: Mar 21, 2011
• Grant date: Aug 14, 2012
• Expiry date: Mar 21, 2031

Classification

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

Abstract

A filter module comprises a body of wound layers of sheet material, said body having inner and outer peripheral surfaces and a winding axis and a passage extending along the winding axis and in fluid communication with the inner peripheral surface, the sheet material having openings forming two channel types extending from the inner to the outer peripheral surfaces, a first channel type open at the outer peripheral surface and closed adjacent to the inner peripheral surface, a second channel type open at the inner peripheral surface, in fluid communication with the passage and closed adjacent to the outer peripheral surface, the two channel types separated from each other by sheet material, one channel type communicating with a module port, the other channel type communicating with another module port, wherein a majority of openings forming the inlet channels incompletely register with corresponding openings of an adjacent layer.