(19)
(11) EP 2 791 381 A2

(12)

(88) Date of publication A3:
08.08.2013

(43) Date of publication:
22.10.2014 Bulletin 2014/43

(21) Application number: 12812461.7

(22) Date of filing: 14.12.2012
(51) International Patent Classification (IPC): 
C23C 4/12(2006.01)
(86) International application number:
PCT/US2012/069807
(87) International publication number:
WO 2013/090754 (20.06.2013 Gazette 2013/25)
(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: 14.12.2011 US 201161570516 P
14.12.2011 US 201161570532 P

(71) Applicant: Praxair S.T. Technology, Inc.
North Haven, CT 06473 (US)

(72) Inventors:
  • PETORAK, Christopher A.
    Carmel, IN 46032 (US)
  • LEMEN, Don J.
    Indianapolis, IN 46268 (US)
  • FEUERSTEIN, Albert
    Carmel, IN 46032 (US)
  • LEWIS III, Thomas F
    Zionsville, IN 46077 (US)

(74) Representative: Schwan Schorer & Partner mbB 
Patentanwälte Bauerstrasse 22
80796 München
80796 München (DE)

   


(54) REACTIVE GAS SHROUD OR FLAME SHEATH FOR SUSPENSION PLASMA SPRAY PROCESSES