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1. (WO2009124172) EARTH BORING BIT WITH WEAR RESISTANT BEARING AND SEAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/124172    International Application No.:    PCT/US2009/039261
Publication Date: 08.10.2009 International Filing Date: 02.04.2009
IPC:
E21B 10/22 (2006.01), E21B 10/50 (2006.01), F16C 33/10 (2006.01)
Applicants: BAKER HUGHES INCORPORATED [US/US]; P.o. Box 4740 Houston, TX 77027 (US) (For All Designated States Except US).
DICK, Aaron, J. [US/US]; (US) (For US Only).
LIN, Chih, C. [US/US]; (US) (For US Only)
Inventors: DICK, Aaron, J.; (US).
LIN, Chih, C.; (US)
Agent: WELBORN, Brian, S.; (US).
DONOUGHUE, Tim, M.; (US).
FITZGERALD, Carmen; (US).
RIDDLE, J., Albert; (US).
CARSON, Matt, W.; (US)
Priority Data:
61/041,621 02.04.2008 US
Title (EN) EARTH BORING BIT WITH WEAR RESISTANT BEARING AND SEAL
(FR) TRÉPAN DE FORAGE COMPORTANT UN ROULEMENT RÉSISTANT À L’USURE ET UN DISPOSITIF D’ÉTANCHÉITÉ
Abstract: front page image
(EN)A roller cone bit is provided that includes a wear resistant coating applied to a bearing shaft, which is attached to a roller cone. The wear resistant coating can be a tungsten/tungsten carbide composite applied by chemical vapor deposition.
(FR)La présente invention concerne un trépan à cône de roulement qui comprend un revêtement résistant à l’usure appliqué sur un arbre de roulement, qui est fixé à un cône de roulement. Le revêtement résistant à l’usure peut être un composite de tungstène/carbure de tungstène appliqué par dépôt chimique en phase vapeur.
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)