(19)
(11) EP 2 324 246 A1

(12)

(43) Date of publication:
25.05.2011 Bulletin 2011/21

(21) Application number: 09790424.7

(22) Date of filing: 15.07.2009
(51) International Patent Classification (IPC): 
F04C 2/16(2006.01)
F04C 15/00(2006.01)
(86) International application number:
PCT/US2009/050613
(87) International publication number:
WO 2010/019337 (18.02.2010 Gazette 2010/07)
(84) Designated Contracting States:
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 SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 14.08.2008 US 191324

(71) Applicant: General Electric Company
Schenectady, NY 12345 (US)

(72) Inventors:
  • ANDERSON, David, Deloyd
    Glenville NY 12302 (US)
  • GHASIPOOR, Farshad
    Scotia NY 12302 (US)
  • KOTHNUR, Vasanath, Srinivasa
    Clifton Park NY 12065 (US)

(74) Representative: Illingworth-Law, William Illingworth et al
Global Patent Operation - Europe GE International Inc. 15 John Adam Street
London WC2N 6LU
London WC2N 6LU (GB)

   


(54) RING SEALS FOR SCREW PUMP ROTORS