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Pub. No.:    WO/2009/140597    International Application No.:    PCT/US2009/044147
Publication Date: 19.11.2009 International Filing Date: 15.05.2009
E21B 23/14 (2006.01), E21B 25/02 (2006.01), E21B 25/14 (2006.01)
Applicants: LONGYEAR TM, INC. [US/US]; Riverpark Corporate Center, #14, Suite 600 10808 South River Front Parkway South Jordan, UT 84095 (US) (For All Designated States Except US).
DRENTH, Christopher, L. [CA/US]; (US) (For US Only).
IBRAHIM, George [CA/CA]; (CA) (For US Only).
LACHANCE, Anthony [CA/CA]; (CA) (For US Only)
Inventors: DRENTH, Christopher, L.; (US).
IBRAHIM, George; (CA).
LACHANCE, Anthony; (CA)
Agent: ISRAELSEN, R., Burns; (US)
Priority Data:
61/053,953 16.05.2008 US
12/349,431 06.01.2009 US
Abstract: front page image
(EN)A jointed spearhead assembly can include a base portion that is adapted to be connected to a down-hole object and a spearhead portion having a first end and a second. The second end includes a follower tab with a non-convex first follower interface. The spearhead portion can be pivotally coupled to the base portion.
(FR)L’invention concerne un ensemble harpon articulé, qui peut comprendre une base conçue pour se raccorder à un objet de fond de trou, et une partie harpon présentant une première et une seconde extrémité. La seconde extrémité comprend une languette mobile ayant une première interface mobile non convexe. La partie harpon peut être articulée à la base.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)