(19)

(11)

EP 2 516 951 A1

(12)

(43) Date of publication: 31.10.2012 Bulletin 2012/44 (21) Application number: 10839974.2 (22) Date of filing: 03.12.2010

(51) International Patent Classification (IPC):  F28D 1/06(2006.01) (86) International application number: PCT/US2010/058878 (87) International publication number: WO 2011/078955 (30.06.2011 Gazette 2011/26)

(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: 23.12.2009 US 646392 (71) Applicant: SPX Corporation Charlotte, NC 28277 (US)	(72) Inventor: BOOTH, Dwight Milton WI 53563 (US) (74) Representative: Nguyen Van Yen, Christian  Immeuble "Visium" 22 avenue Aristide Briand 94117 Arcueil Cedex 94117 Arcueil Cedex (FR)