(19)
(11) EP 1 793 925 A2

(12)

(88) Date of publication A3:
03.08.2006

(43) Date of publication:
13.06.2007 Bulletin 2007/24

(21) Application number: 05792898.8

(22) Date of filing: 25.08.2005
(51) International Patent Classification (IPC): 
B01J 20/28(2006.01)
B01D 53/04(2006.01)
B01J 20/32(2006.01)
(86) International application number:
PCT/US2005/030577
(87) International publication number:
WO 2006/026517 (09.03.2006 Gazette 2006/10)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 27.08.2004 US 927708
27.08.2004 US 928776
17.12.2004 US 16013

(71) Applicant: DONALDSON COMPANY, INC.
Minneapolis, MN 55440-1299 (US)

(72) Inventors:
  • DALLAS, Andrew, James
    Apple Valley, MN 55124 (US)
  • DING, Lefei
    Falcon Heights, MN 55108 (US)
  • JORIMAN, Jon, Dennis
    Little Canada, MN 55117 (US)

(74) Representative: Speiser, Dieter K. et al
Eisenführ, Speiser & Partner Patentanwälte Rechtsanwälte Postfach 10 60 78
28060 Bremen
28060 Bremen (DE)

   


(54) IMPREGNATED FILTER ELEMENTS, AND METHODS