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Machine translation
1. (WO2001031162) DRILL STRING WITH INTERFERENCE FIT COUPLINGS AND COUPLERS THERFOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/031162    International Application No.:    PCT/CA2000/001255
Publication Date: 03.05.2001 International Filing Date: 27.10.2000
Chapter 2 Demand Filed:    28.05.2001    
IPC:
E21B 17/04 (2006.01), E21B 17/042 (2006.01)
Applicants: BOART LONGYEAR INC. [CA/CA]; 1111 Main Street West, P.O. Box 330, North Bay, Ontario P1B 2W4 (CA) (For All Designated States Except US).
YAO, James, Jing [CA/CA]; (CA) (For US Only)
Inventors: YAO, James, Jing; (CA)
Agent: HALL, S, Warren; Dennison Associates, Suite 301, 133 Richmond Street West, Toronto, Ontario M5H 2L7 (CA).
JOHNSON, T., Scott; Dennison Associates, Suite 301, 133 Richmond Street West, Toronto, Ontario M5H 2L7 (CA)
Priority Data:
2,287,681 28.10.1999 CA
Title (EN) DRILL STRING WITH INTERFERENCE FIT COUPLINGS AND COUPLERS THERFOR
(FR) TRAIN DE TIGES DE FORAGE COMPORTANT DES COUPLAGES AVEC AJUSTEMENT SERRE, ET DISPOSITIFS DE COUPLAGE DESTINES A CET EFFET
Abstract: front page image
(EN)A threaded end of a drill rod is formed from a sleeve to one end of the body. The sleeve has a threaded bore to receive a threaded end of an adjacent component and is secured to the body of the rod by an interference fit between a bore and spigot on the two components.
(FR)Selon l'invention, on a formé sur une extrémité du corps d'une tige de forage, une extrémité filetée, destinée à un manchon. Le manchon comporte un alésage fileté destiné à recevoir ladite extrémité filetée du composant adjacent, et il est fixé sur le corps de la tige au moyen d'un ajustement serré, entre l'alésage du manchon et un tourillon de la tige.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)