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Machine translation
1. (WO2004094772) A ROCK DRILL BIT ASSEMBLY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/094772    International Application No.:    PCT/SE2004/000551
Publication Date: 04.11.2004 International Filing Date: 07.04.2004
IPC:
E21B 7/28 (2006.01), E21B 10/12 (2006.01), E21B 10/16 (2006.01), E21B 10/28 (2006.01)
Applicants: ATLAS COPCO SECOROC AB [SE/SE]; Box 521, S-737 25 FAGERSTA (SE) (For All Designated States Except US).
HOLMGREN, Lars [SE/SE]; (SE) (For US Only)
Inventors: HOLMGREN, Lars; (SE)
Agent: KARLSTRÖM, Lennart; NORÉNS PATENTBYRÅ AB, Box 10198, S-100 55 STOCKHOLM (SE)
Priority Data:
0301167-3 22.04.2003 SE
Title (EN) A ROCK DRILL BIT ASSEMBLY
(FR) ENSEMBLE TAILLANT DE FLEURET
Abstract: front page image
(EN)A drill bit assembly for direct removal of rock by means of a rotatable bit assembly (5) that includes a plurality of cutters or choppers (7). According to the invention, a number of cutters (7) are so disposed in relation to each other on the bit assembly (5) that a subsequent cutter (7b), seen in the direction of rotation, will engage an edge created by the action of a preceding cutter (7a).
(FR)L'invention concerne un ensemble taillant de fleuret permettant d'extraire directement la roche au moyen d'un ensemble trépan rotatif (5) comprenant une pluralité de tranchets ou hacheurs (7). Selon l'invention, plusieurs tranchets (7) sont disposés les uns par rapport aux autres sur l'ensemble trépan (5), de sorte qu'un tranchet (7b) vient en contact, dans le sens de rotation, avec un bord formé par l'action du tranchet précédent (7a).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, 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, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, 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, HU, IE, IT, LU, MC, NL, 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)