EP 1979627 B1 20130410 - HYDRAULIC SYSTEM
Title (en)
HYDRAULIC SYSTEM
Title (de)
HYDRAULISCHES SYSTEM
Title (fr)
PRESSE HYDRAULIQUE
Publication
Application
Priority
- FR 2006051375 W 20061218
- FR 0513073 A 20051221
Abstract (en)
[origin: FR2895038A1] The hydraulic system (1), comprising a compression chamber (8) containing a piston (10) that travels along an axis (Z), has at least one seal (30) in undulating groove between the piston and compression chamber wall to compensate for non-axisymmetrical stresses. The compression chamber is located in the lower part of the system, which is connected by two long bolts to a plate (4), and the seal compensates for stresses created by the long bolts' reaction to the force applied by the piston against the plate, with the tops of the seal groove's undulations corresponding to the maximum distance from the base of the compression chamber.
IPC 8 full level
F15B 15/14 (2006.01)
CPC (source: EP US)
B30B 11/004 (2013.01 - EP US); F15B 15/1419 (2013.01 - EP US); F15B 15/1447 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2895038 A1 20070622; FR 2895038 B1 20120420; EP 1979627 A2 20081015; EP 1979627 B1 20130410; US 2009091090 A1 20090409; US 8127661 B2 20120306; WO 2007074282 A2 20070705; WO 2007074282 A3 20070816
DOCDB simple family (application)
FR 0513073 A 20051221; EP 06847165 A 20061218; FR 2006051375 W 20061218; US 15824006 A 20061218