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(11)

EP 3 126 612 A1

(12)

(43) Date of publication: 08.02.2017 Bulletin 2017/06 (21) Application number: 15774272.7 (22) Date of filing: 31.03.2015

(51) International Patent Classification (IPC):  E21B 19/16(2006.01) B25B 13/50(2006.01) E21B 19/00(2006.01) (86) International application number: PCT/US2015/023563 (87) International publication number: WO 2015/153591 (08.10.2015 Gazette 2015/40)

(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 Designated Validation States: MA (30) Priority: 31.03.2014 US 201461972904 P (71) Applicant: Hawk Industries, Inc. Signal Hill, CA 90755 (US)	(72) Inventor: RUSSO, Michael, A. Signal Hill, CA 90755 (US) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)