B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 39/16 (2006.01) B01D 46/10 (2006.01) B01D 46/52 (2006.01)
Patent
CA 2282856
An air filter is disclosed with a deep filter material (2) which includes a fleece (5) having a raw air side (7) and a clean air side (8), whereby the fleece (5) is made of adhesively and/or cohesively connected fibres (6), whereby the fibres (6) include entanglements which are produced by liquid jet treatment from the clean air side (8) prior to the adhesive and/or cohesive connecting, and whereby the fibres (6) are progressively densified by the liquid jet treatment from the raw air side (7) towards the clean air side (8) so that differently densified regions (A,B,C) are formed in which particles of different size can be separated.
Berkemann Ralph
Hollingsworth Anthony
Staudenmayer Oliver
Borden Ladner Gervais Llp
Carl Freudenberg Kg
Freudenberg Carl
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