EP 0376811 B1 19930818 - REMOTE ACTUATOR WITH A NOZZLE-NEEDLE SYSTEM
Title (en)
REMOTE ACTUATOR WITH A NOZZLE-NEEDLE SYSTEM
Publication
Application
Priority
FR 8817603 A 19881230
Abstract (en)
[origin: EP0376811A1] The present invention relates to a remote actuator for a piece of equipment, operating by variation in the flow conditions of a possibly incompressible fluid, comprising an actuating piston (12) and a nozzle-needle unit (20, 21; 53, 57). This actuator is characterised in that one of these two elements (20, 21; 53, 57) is mounted so as to slide in the said piston (12), and in that it comprises means (24) for returning the said slidably mounted element to a predetermined position relative to the said cylinder. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 7/06 (2006.01); E21B 23/00 (2006.01); E21B 23/04 (2006.01); E21B 47/09 (2012.01)
CPC (source: EP US)
E21B 7/068 (2013.01 - EP US); E21B 23/006 (2013.01 - EP US); E21B 47/095 (2020.05 - EP US)
Designated contracting state (EPC)
GB IT NL
DOCDB simple family (publication)
EP 0376811 A1 19900704; EP 0376811 B1 19930818; CA 2006935 A1 19900630; CA 2006935 C 20000118; FR 2641320 A1 19900706; FR 2641320 B1 19910503; NO 180457 B 19970113; NO 180457 C 19970423; NO 895301 D0 19891228; NO 895301 L 19900702; US 5437308 A 19950801
DOCDB simple family (application)
EP 89403594 A 19891221; CA 2006935 A 19891229; FR 8817603 A 19881230; NO 895301 A 19891228; US 15444693 A 19931019