EP 2466156 A1 20120620 - Telescopic hydraulic cylinder
Title (en)
Telescopic hydraulic cylinder
Title (de)
Teleskopischer Hydraulikzylinder
Title (fr)
Cylindre hydraulique télescopique
Publication
Application
Priority
EP 10195427 A 20101216
Abstract (en)
The invention concerns a telescopic hydraulic cylinder comprising two or more concentric cylindrical tubes (14,20,21,22,23) and a piston (19); seals (37) between the cylindrical tubes and the piston whereby the cylindrical tubes and the piston can move in axial direction relative one another between a retracted position and an extended position, for in the extended position limiting further extending axial movement an inner tube (20,21,22,23) or piston has an outer stop ring (35) mounted in an outer groove in its outer surface and an outer tube or base tube has an inner stop ring (36) mounted in an inner groove in its inner surface. In accordance with the invention adjacent to the outer groove there is an outer relieve groove.
IPC 8 full level
F15B 15/16 (2006.01)
CPC (source: EP)
F15B 15/16 (2013.01)
Citation (search report)
- [XI] EP 0450501 A1 19911009 - NEUMEISTER WALTER [DE]
- [XI] DE 2004117 A1 19700903 - NUMMI OY
- [A] GB 1590773 A 19810610 - TELEHOIST LTD
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)
EP 2466156 A1 20120620; BR PI1106869 A2 20130409; BR PI1106869 B1 20210309; CN 102588381 A 20120718; CN 102588381 B 20160120; EP 2466157 A1 20120620; EP 2466157 B1 20171129; TR 201802819 T4 20180321
DOCDB simple family (application)
EP 10195427 A 20101216; BR PI1106869 A 20111213; CN 201110414287 A 20111213; EP 11193278 A 20111213; TR 201802819 T 20111213