EP 2359013 A4 20130710 - DEVICE AT A HYDRAULIC CYLINDER

Title (en)

DEVICE AT A HYDRAULIC CYLINDER

Title (de)

VORRICHTUNG AN EINEM HYDRAULISCHEN ZYLINDER

Title (fr)

DISPOSITIF AU NIVEAU D'UN VÉRIN HYDRAULIQUE

Publication

EP 2359013 A4 20130710 (EN)

Application

EP 09833721 A 20091211

Priority

SE 2009051402 W 20091211
SE 0850168 A 20081219

Abstract (en)

[origin: WO2010071557A1] The invention refers to a device at a hydraulic cylinder (100, 200, 300, 400) comprising a cylinder (103, 203, 303, 403), a piston (101, 201, 301, 401), a piston rod (102, 202, 302, 402), control bands (121, 221, 321, 421 and 115, 215, 315, 415) arranged along the casing surface of the piston (126, 226, 326, 426) and along the piston rod and two sealings (118, 218, 318, 418; 123, 223, 323, 423) arranged along the casing surface of the piston, whereby a stray flux channel (125, 225, 325, 425) is provided through the piston extending from a point on the casing surface of the piston leading to a point being in contact with the piston side of the cylinder. A check valve (127, 227, 327, 427) is arranged in direct connection with said stray flux channel (125, 225, 325, 425) which extends from said point on the casing surface of the piston (126, 226, 326, 426) between and at a predetermined distance from said sealings (118, 218, 318, 418; 123, 223, 323, 423) being of the similar kind and located on the piston rod side of said control band.

IPC 8 full level

F15B 15/14 (2006.01); F15B 7/10 (2006.01); F15B 15/20 (2006.01); F16J 15/00 (2006.01); F16J 15/18 (2006.01)

CPC (source: EP SE)

F15B 11/205 (2013.01 - EP); F15B 15/149 (2013.01 - SE); F15B 15/204 (2013.01 - EP); F16J 15/004 (2013.01 - EP); F16J 15/182 (2013.01 - SE); F15B 7/10 (2013.01 - EP)

Citation (search report)

[XI] US 3229589 A 19660118 - ARTHUR LANGAS
[XI] DE 102005015420 A1 20051020 - HOERBIGER AUTOMATISIERUNGSTECH [DE]
[XI] FR 993199 A 19511029
[XI] US 6186043 B1 20010213 - CALLIES ROBERT EDWIN [US]

Designated contracting state (EPC)

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 SE SI SK SM TR

DOCDB simple family (publication)

WO 2010071557 A1 20100624; EP 2359013 A1 20110824; EP 2359013 A4 20130710; SE 0850168 A1 20100620; SE 533598 C2 20101102

DOCDB simple family (application)

SE 2009051402 W 20091211; EP 09833721 A 20091211; SE 0850168 A 20081219