EP 0505349 B2 19980527 - Hydraulic actuator
Title (en)
Hydraulic actuator
Title (de)
Hydraulische Zylinder/Kolben-Anordnung
Title (fr)
Vérin hydraulique
Publication
Application
Priority
AT 61991 A 19910320
Abstract (en)
[origin: EP0505349A2] To ensure position-independent locking of a hydraulic actuator, a pressure-limiting element (27) is provided in the connection conduit (7) for hydraulic fluid. During the hydraulic adjustment of the piston (3), the said element is open and when the connections (8) are unpressurised, is closed and, above a certain pressurisation of the hydraulic fluid in the associated working space (4), opens due to a force (Fz) applied via the piston (3). <IMAGE>
IPC 1-7
IPC 8 full level
F15B 13/01 (2006.01)
CPC (source: EP US)
F15B 13/01 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0505349 A2 19920923; EP 0505349 A3 19930303; EP 0505349 B1 19950524; EP 0505349 B2 19980527; AT 402334 B 19970425; AT A61991 A 19960815; DE 59202285 D1 19950629; US 5235896 A 19930817
DOCDB simple family (application)
EP 92890058 A 19920317; AT 61991 A 19910320; DE 59202285 T 19920317; US 85324592 A 19920318