Filter module and method for its manufacture
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United States of America Patent
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Jul 10, 2012
Grant Date -
Jul 21, 2005
app pub date -
May 13, 2004
filing date -
Nov 13, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filter module is formed of wound filter material having openings wherein the boundary surfaces of the openings constitute flow-through surfaces. The openings of the wound layers of the filter material form channels angled relative to the winding axis, wherein one group thereof opens at the outer peripheral surface of the roll and the other group opens at the inner peripheral surface of the roll and wherein the channels on the other end, respectively, are closed and wherein the channels, angled relative to the winding axis, are separated from one another by filter material, and wherein the inner area of the roll has a central channel arranged around a winding axis.
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