EP 2553214 A2 20130206 - AN ACTUATOR DEVICE
Title (en)
AN ACTUATOR DEVICE
Title (de)
BETÄTIGERVORRICHTUNG
Title (fr)
DISPOSITIF D'ACTIONNEUR
Publication
Application
Priority
- NO 20100471 A 20100330
- EP 2011054806 W 20110329
Abstract (en)
[origin: WO2011120959A2] The present invention relates to a device which can be employed in connection with oil and/or gas wells for the purpose of increasing the well's production. The device comprises an external structure, in which external structure a first and a second pressure-influenced bellows device is mounted, where the first and second pressure- influenced bellows devices are in fluid connection with each other via a support device. At the end opposite the connection with the support device, the second pressure-influenced bellows device is connected to a movable sleeve. The device further comprises a pivotable or rotatable closing mechanism for the device, where the closing mechanism is connected to the movable sleeve.
IPC 8 full level
E21B 34/08 (2006.01)
CPC (source: EP US)
E21B 34/08 (2013.01 - EP US); E21B 43/123 (2013.01 - EP US)
Citation (search report)
See references of WO 2011120959A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2011120959 A2 20111006; WO 2011120959 A3 20121122; AU 2011234548 A1 20121018; BR 112012024772 A2 20160607; CA 2794815 A1 20111006; EP 2553214 A2 20130206; MX 2012011208 A 20130227; NO 20100471 A1 20111003; SG 184284 A1 20121129; US 2013140033 A1 20130606
DOCDB simple family (application)
EP 2011054806 W 20110329; AU 2011234548 A 20110329; BR 112012024772 A 20110329; CA 2794815 A 20110329; EP 11713212 A 20110329; MX 2012011208 A 20110329; NO 20100471 A 20100330; SG 2012071544 A 20110329; US 201113637028 A 20110329