EP 0983442 A1 20000308 - MANUALLY OPERATED EMERGENCY CONTROL ACTUATION DEVICE
Title (en)
MANUALLY OPERATED EMERGENCY CONTROL ACTUATION DEVICE
Title (de)
BETÄTIGUNGSVORRICHTUNG MIT NOTHANDBETÄTIGUNG
Title (fr)
DISPOSITIF D'ACTIONNEMENT A COMMANDE MANUELLE D'URGENCE
Publication
Application
Priority
- DE 19721404 A 19970522
- EP 9801616 W 19980319
Abstract (en)
[origin: US6220142B1] An actuation device for emergency operation of a hydraulically controlled actuator includes a housing with a fluid container connected to the actuator via a connection point and to a hydraulic supply circuit of the actuator via another connection point. A separating piston is guided lengthwise inside the fluid container via a manually operated adjusting device. The piston has a control device for a through-opening joining the connection points to each other. The actuation device provides an economical and simple way of reliably controlling and monitoring the hydraulically controlled actuator in case of malfunction by an adjustment screw screwed or unscrewed on the housing. The screwing path is chosen such that the cooperating separating piston can be displaced between two end positions. The through-opening of the separating piston has a check valve which is opened at one end position and is closed at the other.
IPC 1-7
IPC 8 full level
F15B 13/10 (2006.01); F15B 20/00 (2006.01)
CPC (source: EP US)
F15B 13/10 (2013.01 - EP US); F15B 20/004 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
US 6220142 B1 20010424; AT E230072 T1 20030115; DE 19721404 A1 19981126; DE 19721404 C2 19990722; DE 59806731 D1 20030130; EP 0983442 A1 20000308; EP 0983442 B1 20021218; JP 2001525912 A 20011211; JP 4098370 B2 20080611; WO 9853213 A1 19981126
DOCDB simple family (application)
US 29704999 A 19990428; AT 98919119 T 19980319; DE 19721404 A 19970522; DE 59806731 T 19980319; EP 9801616 W 19980319; EP 98919119 A 19980319; JP 54984098 A 19980319