(19)
(11) EP 2 755 775 A2

(12)

(88) Date of publication A3:
10.05.2013

(43) Date of publication:
23.07.2014 Bulletin 2014/30

(21) Application number: 12830923.4

(22) Date of filing: 13.09.2012
(51) International Patent Classification (IPC): 
B05C 11/08(2006.01)
B05C 5/04(2006.01)
(86) International application number:
PCT/US2012/055048
(87) International publication number:
WO 2013/040147 (21.03.2013 Gazette 2013/12)
(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: 13.09.2011 US 201161533904 P

(71) Applicant: Graco Minnesota Inc.
Minneapolis, MN 55413-1894 (US)

(72) Inventors:
  • MROZEK, Greg, T.
    Brooklyn Park, Minnesota 55444 (US)
  • LIHWA, John, S.
    Willowick, Ohio 44095 (US)
  • JOHNSON, Corey, Dean
    Akron, Ohio 44313 (US)

(74) Representative: Miller Sturt Kenyon 
9 John Street
London WC1N 2ES
London WC1N 2ES (GB)

   


(54) METHOD FOR PREVENTING PACK-OUT IN PUMPING SYSTEM