(19)
(11) EP 2 984 456 A1

(12)

(43) Date of publication:
17.02.2016 Bulletin 2016/07

(21) Application number: 13718312.5

(22) Date of filing: 12.04.2013
(51) International Patent Classification (IPC): 
G01D 5/34(2006.01)
 G01D 5/347(2006.01)
(86) International application number:
PCT/EP2013/057718
(87) International publication number:
WO 2014/166550 (16.10.2014 Gazette 2014/42)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

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

(72) Inventors:
  • SAUER, Wolfgang
    83483 Bischofswiesen (DE)
  • HUNKLINGER, Herbert
    83313 Siegsdorf (DE)

(74) Representative: Michalski Hüttermann & Partner Patentanwälte mbB 
Speditionstraße 21
40221 Düsseldorf
40221 Düsseldorf (DE)

   


(54) ROTATION ANGLE SENSOR DEVICE, STEPPER MOTOR SYSTEM AND DIAPHRAGM PUMP WITH AN ACCORDING SENSOR DEVICE, AND ACCORDING METHOD FOR CONTROLLING THE STEPPER MOTOR