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(11)

EP 2 834 442 A1

(12)

(43) Date of publication: 11.02.2015 Bulletin 2015/07 (21) Application number: 13772186.6 (22) Date of filing: 04.04.2013

(51) International Patent Classification (IPC):  E21B 7/12(2006.01) E21B 17/042(2006.01) (86) International application number: PCT/US2013/035312 (87) International publication number: WO 2013/152219 (10.10.2013 Gazette 2013/41)

(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: 04.04.2012 US 201261620207 P 11.03.2013 US 201313793260 (71) Applicants: Mako Rentals, Inc. Houma, LA 70363 (US) Robichaux, Kip Houma, LA 70363 (US) Robichaux, Terry Houma, LA 70363 (US)	(72) Inventors: ROBICHAUX, Kip Houma, LA 70363 (US) ROBICHAUX, Terry Houma, LA 70363 (US) (74) Representative: HGF Limited  Belgrave Hall Belgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)