(19)

(11)

EP 2 795 004 A1

(12)

(43) Date of publication: 29.10.2014 Bulletin 2014/44 (21) Application number: 12840866.3 (22) Date of filing: 13.12.2012

(51) International Patent Classification (IPC):  E02F 9/28(2006.01) (86) International application number: PCT/IB2012/002964 (87) International publication number: WO 2013/093623 (27.06.2013 Gazette 2013/26)

(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: 21.12.2011 US 201161578424 P 07.12.2012 US 201213707923 (71) Applicant: Caterpillar SARL 1208 Geneva (CH)	(72) Inventors: CLAUSE, Celia, R. Jefferson, IA 50129 (US) MAGLIULO, Alessandro Morrisville, NC 27560 (US) (74) Representative: Kramer - Barske - Schmidtchen  Landsberger Strasse 300 80687 München 80687 München (DE)