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(11)

EP 2 217 814 A1

(12)

(43) Date of publication: 18.08.2010 Bulletin 2010/33 (21) Application number: 08849511.4 (22) Date of filing: 14.11.2008

(51) International Patent Classification (IPC):  F15B 21/04(2006.01) F04B 49/02(2006.01) F04B 41/02(2006.01) (86) International application number: PCT/BR2008/000341 (87) International publication number: WO 2009/062276 (22.05.2009 Gazette 2009/21)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 14.11.2007 BR PI0705341 (71) Applicant: Festo Automação LTDA. R. Giuseppe Crespi 76 Cep:04183-080 São Paulo - SP (BR)	(72) Inventor: DOS SANTOS, Paulo Roberto Cep: 09112-075 Santo André - SP (BR) (74) Representative: nospat Patent- und Rechtsanwälte Naefe Oberdorfer Schmidt  Isartorplatz 5 80331 München 80331 München (DE)