(19)

(11)

EP 3 166 745 A1

(12)

(43) Date of publication: 17.05.2017 Bulletin 2017/20 (21) Application number: 15745030.5 (22) Date of filing: 09.07.2015

(51) International Patent Classification (IPC):  B23K 20/12(2006.01) E21B 17/10(2006.01) B23K 20/22(2006.01) B23K 101/04(2006.01) (86) International application number: PCT/US2015/039787 (87) International publication number: WO 2016/007773 (14.01.2016 Gazette 2016/02)

(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: 10.07.2014 US 201462023166 P 25.11.2014 US 201462084432 P (71) Applicant: Megastir Technologies LLC Provo, UT 84604 (US)	(72) Inventors: UTTER, Robert J. Sugar Land, Texas 77479 (US) FLECK, Rodney Dale Mansfield, Texas 76063 (US) STEEL, Russell J. Salem, UT 84653 (US) (74) Representative: Gulde & Partner  Patent- und Rechtsanwaltskanzlei mbB Wallstraße 58/59 10179 Berlin 10179 Berlin (DE)