EP 1574474 A3 20061004 - Hydraulic arrangement
Title (en)
Hydraulic arrangement
Title (de)
Hydraulische Anordnung
Title (fr)
Agencement hydraulique
Publication
Application
Priority
DE 102004012382 A 20040313
Abstract (en)
[origin: EP1574474A2] The hydraulic control to provide a floating position for a hydraulic cylinder in a construction vehicle has a switching valve (50) in the hydraulic lines connected to the cylinder and with a control (12) having three positions, one of which provides the floating position. In this a secondary hydraulic feed line (24) is connected to the hydraulic reservoir (20) and both main lines are connected directly to a pump (18).
IPC 8 full level
B66F 9/22 (2006.01); B66F 9/065 (2006.01); E02F 9/22 (2006.01); F15B 11/02 (2006.01); F15B 11/024 (2006.01); F15B 11/044 (2006.01); F15B 11/08 (2006.01); F15B 11/12 (2006.01); F15B 13/02 (2006.01); F15B 13/04 (2006.01)
CPC (source: EP US)
B66F 9/065 (2013.01 - EP US); B66F 9/22 (2013.01 - EP US); F15B 11/024 (2013.01 - EP US); F15B 11/0445 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/50545 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/761 (2013.01 - EP US)
Citation (search report)
- [DY] DE 10006908 A1 20010823 - CATERPILLAR SARL GENF GENEVA [CH]
- [Y] US 4522109 A 19850611 - MARCHI GARY C [US], et al
- [A] US 3650425 A 19720321 - HALLMAN RUSSELL H, et al
- [A] DE 3216580 A1 19830224 - HIAB FOCO AB [SE]
- [A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 060 (M - 796) 10 February 1989 (1989-02-10)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1574474 A2 20050914; EP 1574474 A3 20061004; AU 2005201083 A1 20050929; AU 2005201083 B2 20110310; CA 2500609 A1 20050913; CA 2500609 C 20070522; DE 102004012382 A1 20050929; DE 102004012382 B4 20140313; US 2005199120 A1 20050915; US 7448309 B2 20081111
DOCDB simple family (application)
EP 05101767 A 20050308; AU 2005201083 A 20050311; CA 2500609 A 20050311; DE 102004012382 A 20040313; US 7759605 A 20050311