EP 1431225 B1 20070214 - Elevator with hydraulic drive
Title (en)
Elevator with hydraulic drive
Title (de)
Aufzug mit einem hydraulischen Antrieb
Title (fr)
Ascenseur à entrainement hydraulique
Publication
Application
Priority
DE 10259146 A 20021218
Abstract (en)
[origin: EP1431225A1] Lift comprises a hydraulic drive, measurement signal sensors for determining system states, and at least one electronically controlled valve (10) with a control unit having an arrangement for feeding back at least the measurement signals of the hydraulic pressure and the valve piston position. At least one 3/3-way valve (21) is provided for controlling the drive. An Independent claim is also included for a process for controlling a hydraulically driven lift. Preferred Features: The drive is a hydraulic revolving cylinder engine or a hydraulic linear drive (9a).
IPC 8 full level
B66B 1/04 (2006.01)
CPC (source: EP)
B66B 1/24 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1431225 A1 20040623; EP 1431225 B1 20070214; AT E353847 T1 20070315; DE 10259146 A1 20040715; DE 50306487 D1 20070329
DOCDB simple family (application)
EP 03028882 A 20031216; AT 03028882 T 20031216; DE 10259146 A 20021218; DE 50306487 T 20031216