(19)
(11) EP 2 082 135 A1

(12)

(43) Date of publication:
29.07.2009 Bulletin 2009/31

(21) Application number: 06818564.4

(22) Date of filing: 16.11.2006
(51) International Patent Classification (IPC): 
F04B 43/02(2006.01)
F16K 15/00(2006.01)
 F04B 53/10(2006.01)
F04B 13/00(2006.01)
(86) International application number:
PCT/EP2006/010969
(87) International publication number:
WO 2008/058558 (22.05.2008 Gazette 2008/21)
(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

(71) Applicant: ECOLAB INC.
St. Paul, MN 55102-1390 (US)

(72) Inventors:
  • ALBRECHT, Rudolf
    83043 Bad Aibling (DE)
  • HUNKLIGER, Herbert
    83313 Siegsdorf (DE)

(74) Representative: Polypatent 
An den Gärten 7
51491 Overath
51491 Overath (DE)

   


(54) ACTIVE CHECK VALVES IN DIAPHRAGM PUMP WITH SOLENOID DRIVE