EP 2218827 B1 20120523 - Device for exerting pressure to a stiffening of a pit
Title (en)
Device for exerting pressure to a stiffening of a pit
Title (de)
Vorrichtung zur Druckbeaufschlagung einer Schachteinfassung
Title (fr)
Dispositif permettant de mettre en pression une partie de la paroi d'un puits
Publication
Application
Priority
FR 0900607 A 20090212
Abstract (en)
[origin: EP2218827A1] The device has a cylinder chamber (41) having parts (47, 50) with variable volume based on displacement of a piston (46). One of the parts with a supply outlet (43) is filled with incompressible fluid. A connection unit connects an end (49) of a control rod (48) with the piston, so that the rod is partially set in the other part not having supply outlet. A control unit (60) controls translation of the rod along longitudinal axis (42) so as to slide the piston in the chamber with predetermined quantity. Cells (11-13) of a tri-cellular probe (10) have walls made of elastic rubber. The incompressible fluid is water and gas.
IPC 8 full level
E02D 1/02 (2006.01)
CPC (source: EP)
E02D 1/022 (2013.01)
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)
EP 2218827 A1 20100818; EP 2218827 B1 20120523; ES 2388056 T3 20121008; FR 2941975 A1 20100813; FR 2941975 B1 20110204; PL 2218827 T3 20121031
DOCDB simple family (application)
EP 10290040 A 20100129; ES 10290040 T 20100129; FR 0900607 A 20090212; PL 10290040 T 20100129