EP 1301685 A2 20030416 - IMPROVEMENTS IN VALVES
Title (en)
IMPROVEMENTS IN VALVES
Title (de)
VERBESSERUNGEN AN VENTILEN
Title (fr)
PERFECTIONNEMENTS APPORTES A DES VANNES
Publication
Application
Priority
- GB 0103283 W 20010720
- GB 0017690 A 20000720
Abstract (en)
[origin: US2002007950A1] A downhole valve (10) comprises a body (12) defining a through bore (14) and a valve seat (16, 17); and a valve member (18) mounted in the body and moveable between positions to open and close the body bore (14). The valve member (18) defines a segment of a wall of a hollow sphere. In the open position the valve member (18) is located to one side of the bore (14) and in the closed position the valve member (18) engages the valve seat (16, 17).
IPC 1-7
IPC 8 full level
E21B 34/06 (2006.01)
CPC (source: EP US)
E21B 34/06 (2013.01 - EP US)
Citation (search report)
See references of WO 0208561A2
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
US 2002007950 A1 20020124; AU 7265501 A 20020205; CA 2415955 A1 20020131; EP 1301685 A2 20030416; GB 0017690 D0 20000906; WO 0208561 A2 20020131; WO 0208561 A3 20020530
DOCDB simple family (application)
US 91064401 A 20010720; AU 7265501 A 20010720; CA 2415955 A 20010720; EP 01951806 A 20010720; GB 0017690 A 20000720; GB 0103283 W 20010720