(19)

(11)

EP 3 092 109 A1

(12)

(43) Date of publication: 16.11.2016 Bulletin 2016/46 (21) Application number: 15734939.0 (22) Date of filing: 09.01.2015

(51) International Patent Classification (IPC):  B24D 3/06(2006.01) E02F 9/28(2006.01) B24D 3/34(2006.01) (86) International application number: PCT/US2015/010886 (87) International publication number: WO 2015/106148 (16.07.2015 Gazette 2015/28)

(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 Designated Extension States: BA ME (30) Priority: 10.01.2014 US 201461926080 P (71) Applicant: ESCO CORPORATION Portland, OR 97210-2578 (US)	(72) Inventor: MONTROSS, Charles, S. Beaverton, OR 97006 (US) (74) Representative: Puschmann Borchert Bardehle Patentanwälte Partnerschaft mbB  Bajuwarenring 21 82041 Oberhaching 82041 Oberhaching (DE)