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Machine translation
1. (WO2004029408) SAFETY VALVE WITH RELEASABLE FLOW TUBE FOR FLAPPER LOCKOUT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/029408    International Application No.:    PCT/US2003/027507
Publication Date: 08.04.2004 International Filing Date: 02.09.2003
Chapter 2 Demand Filed:    11.02.2004    
IPC:
E21B 34/00 (2006.01), E21B 34/10 (2006.01)
Applicants: BAKER HUGHES INCORPORATED [US/US]; 3900 Essex Lane, Suite 1200, Houston, TX 77027 (US)
Inventors: MCVICKER, Van, J.; (US)
Agent: CARSON, Matt, W.; Baker Hughes Incorporated, 3900 Essex lane, Suite 1200, Houston, TX 77027 (US)
Priority Data:
10/254,261 25.09.2002 US
Title (EN) SAFETY VALVE WITH RELEASABLE FLOW TUBE FOR FLAPPER LOCKOUT
(FR) VALVE DE SECURITE A TUBE D'ECOULEMENT LIBERABLE POUR FERMETURE DE CLAPET
Abstract: front page image
(EN)A safety valve has a lock open feature that is actuated by expanding or penetrating the flow tube to disconnect the link between the piston in the hydraulic control system and the flow tube. In normal operation, downward movement of the piston moves the flow tube against a power spring. When the flow tube is expanded, penetrated, or otherwise altered, the piston no longer acts on the flow tube and the flow tube can be simply pushed down and locked in position with the flapper wide open.
(FR)L'invention concerne une valve de sécurité à fonction d'ouverture verrouillable activée par l'expansion ou la pénétration d'un tube d'écoulement, interrompant la liaison entre le piston du système de commande hydraulique et le tube d'écoulement. En fonctionnement normal, le mouvement descendant du piston pousse le tube d'écoulement contre un ressort assisté. A l'expansion, la pénétration ou autre modification du tube, le piston n'agit plus sur ce tube, lequel peut être simplement poussé vers le bas et verrouillé en position laissant le clapet grand ouvert.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, 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, 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, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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, 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)