EP 0702756 B1 20000517 - SAFETY ARRANGEMENT ON HYDRAULIC PISTON-CYLINDER UNITS
Title (en)
SAFETY ARRANGEMENT ON HYDRAULIC PISTON-CYLINDER UNITS
Title (de)
SICHERHEITSEINRICHTUNG AN HYDRAULISCHEN KOLBEN-ZYLINDER-EINHEITEN
Title (fr)
SYSTEME DE SECURITE MONTE SUR DES UNITES HYDRAULIQUES PISTON-CYLINDRE
Publication
Application
Priority
- AT 9500037 W 19950221
- AT 44894 A 19940302
Abstract (en)
[origin: WO9523925A1] The invention relates to a safety arrangement on hydraulic piston-cylinder units, in particular for monitoring locking cylinders, e.g. of operating tools mounted on a grab bucket boom. A sensor for monitoring the piston position is provided on the hydraulic piston-cylinder unit and is coupled electrically to a monitoring circuit for triggering an alarm arrangement if the piston is incorrectly positioned. The sensor (3) is coupled to an electrically actuatable locking valve (2) coupled to the monitoring circuit (9) for controlling the hydraulic piston-cylinder unit (1).
IPC 1-7
IPC 8 full level
E02F 9/24 (2006.01); F15B 15/28 (2006.01); F15B 20/00 (2006.01); E02F 3/36 (2006.01)
CPC (source: EP US)
E02F 3/3654 (2013.01 - EP US); E02F 3/3663 (2013.01 - EP US); E02F 9/24 (2013.01 - EP US); F15B 20/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9523925 A1 19950908; AT 401785 B 19961125; AT A44894 A 19960415; AT E193101 T1 20000615; CA 2161972 A1 19950908; DE 59508343 D1 20000621; EP 0702756 A1 19960327; EP 0702756 B1 20000517; JP H09500438 A 19970114; US 5727442 A 19980317
DOCDB simple family (application)
AT 9500037 W 19950221; AT 44894 A 19940302; AT 95908166 T 19950221; CA 2161972 A 19950221; DE 59508343 T 19950221; EP 95908166 A 19950221; JP 52256095 A 19950221; US 54969495 A 19951102