(19)
(11) EP 2 556 721 A1

(12)

(43) Date of publication:
13.02.2013 Bulletin 2013/07

(21) Application number: 11766713.9

(22) Date of filing: 07.04.2011
(51) International Patent Classification (IPC): 
H05B 3/40(2006.01)
(86) International application number:
PCT/US2011/031543
(87) International publication number:
WO 2011/127257 (13.10.2011 Gazette 2011/41)
(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

(30) Priority: 09.04.2010 US 322664 P

(71) Applicants:
  • Shell Oil Company
    Houston, TX 77252-2463 (US)

    SM 
  • Shell Internationale Research Maatschappij B.V.
    2596 HR The Hague (NL)

(72) Inventors:
  • BASS, Ronald Marshall
    Houston Texas 77019 (US)
  • HARLEY, Robert Guy
    Spring Texas 77379 (US)
  • NOEL, Justin Michael
    The Woodlands Texas 77381 (US)
  • SHAFFER, Robert Anthony
    Cypress Texas 77433 (US)

(74) Representative: Matthezing, Robert Maarten et al
Shell International B.V. LSI PO Box 384
2501 CJ The Hague
2501 CJ The Hague (NL)

   


(54) INSULATING BLOCKS AND METHODS FOR INSTALLATION IN INSULATED CONDUCTOR HEATERS