(19)
(11) EP 1 579 136 A1

(12)

(43) Date of publication:
28.09.2005 Bulletin 2005/39

(21) Application number: 03808568.4

(22) Date of filing: 26.12.2003
(51) International Patent Classification (IPC)7: F16K 31/02
(86) International application number:
PCT/US2003/041303
(87) International publication number:
WO 2004/061343 (22.07.2004 Gazette 2004/30)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 26.12.2002 WO PCT/US02/41576
24.06.2003 WO PCT/US03/20117
22.10.2003 US 513722 P
04.12.2003 WO PCT/US03/38730

(71) Applicant: Arichell Technologies, Inc.
West Newton, MA 02165 (US)

(72) Inventors:
  • GULER, Fatih
    Winchester, MA 01890 (US)
  • PARSONS, Natan, E.
    Brookline, MA 02146 (US)
  • ZHANG, Yue
    Nashua, NH 03062 (US)
  • MO, Xiaoxing
    Lexington, MA 02420 (US)
  • HERBERT, Kay
    Winthrop, MA 02152 (US)
  • WU, Haiou
    West Roxbury, MA 02132 (US)

(74) Representative: Wagner, Karl H. 
WAGNER & GEYER Patentanwälte Gewürzmühlstrasse 5
80538 München
80538 München (DE)

   


(54) OPTICAL SENSORS AND ALGORITHMS FOR CONTROLING AUTOMATIC BATHROOM FLUSHERS AND FAUCETS