(19)

(11)

EP 2 510 237 A2

(12)

(88) Date of publication A3: 13.10.2011 (43) Date of publication: 17.10.2012 Bulletin 2012/42 (21) Application number: 10836313.6 (22) Date of filing: 08.12.2010

(51) International Patent Classification (IPC):  F04B 49/06(2006.01) F04B 49/20(2006.01) F04B 23/00(2006.01) F04B 17/04(2006.01) (86) International application number: PCT/US2010/003120 (87) International publication number: WO 2011/071528 (16.06.2011 Gazette 2011/24)

(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: 08.12.2009 US 267509 P (71) Applicant: Graco Minnesota Inc. Minneapolis, MN 55413 (US)	(72) Inventors: BLACKSON, Christopher, R. Uniontown, Ohio 44685 (US) LONG, Nicholas, D. Massillon, Ohio 44646 (US) BLOUGH, Roger, D. Canal Fulton, Ohio 44614 (US) (74) Representative: Miller Sturt Kenyon  9 John Street London WC1N 2ES London WC1N 2ES (GB)