Global Patent Index - EP 1431495 A3

EP 1431495 A3 20090527 - Electrohydraulic drive for a pivoting door

Title (en)

Electrohydraulic drive for a pivoting door

Title (de)

Elektrohydraulischer Drehflügeltürantrieb

Title (fr)

Entraînement électrohydraulique pour porte pivotante

Publication

EP 1431495 A3 20090527 (DE)

Application

EP 03029121 A 20031218

Priority

DE 10261224 A 20021220

Abstract (en)

[origin: DE10261224B3] The door operating drive has a hydraulically-controlled valve (20) incorporated in the hydraulic circuit for providing the open holding function and provided by a 2/2-way valve with a control piston (22) and a non-return valve (23). The effective piston surface of the control piston is greater than the sealing surface of the 2/2-way valve, so that the control pressure in the open holding valve is less than the pressure in the piston space (1) of the door operating drive.

IPC 8 full level

E05F 3/10 (2006.01); E05F 3/12 (2006.01); E05F 3/22 (2006.01); E05F 15/04 (2006.01)

CPC (source: EP)

E05F 3/102 (2013.01); E05F 3/12 (2013.01); E05F 3/223 (2013.01); E05F 3/224 (2013.01); E05Y 2201/20 (2013.01); E05Y 2201/254 (2013.01); E05Y 2400/3015 (2024.05); E05Y 2800/00 (2013.01); E05Y 2900/132 (2013.01)

Citation (search report)

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

Designated extension state (EPC)

AL LT LV MK

DOCDB simple family (publication)

DE 10261224 B3 20040513; EP 1431495 A2 20040623; EP 1431495 A3 20090527; NO 20035665 D0 20031218; NO 20035665 L 20040621

DOCDB simple family (application)

DE 10261224 A 20021220; EP 03029121 A 20031218; NO 20035665 A 20031218