EP 0735275 B1 20020918 - Snap-in locking device
Title (en)
Snap-in locking device
Title (de)
Rastschaltvorrichtung
Title (fr)
Dispositif à crans
Publication
Application
Priority
DE 19511522 A 19950329
Abstract (en)
[origin: US5699714A] A switching device controlling at least one hydraulically operating apparatus has two check valves working in opposition to one another in a feed conduit and a discharge conduit, respectively. The conduits are connected to the operating apparatus, as well as to a pilot valve. Two openable nonreturn valves are connected parallel to the two check valves. The control line of one openable nonreturn valve is connected to the blocking connection of the other openable nonreturn valve. The switching device is especially for controlling a hydraulic cylinder to provide a float setting at low cost, with reliable operation, and with few components.
IPC 1-7
IPC 8 full level
F15B 9/02 (2006.01); F15B 11/02 (2006.01); F15B 13/01 (2006.01); F15B 13/02 (2006.01)
CPC (source: EP US)
F15B 13/01 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
US 5699714 A 19971223; AT E224510 T1 20021015; DE 19511522 C1 19960718; DE 59609666 D1 20021024; EP 0735275 A2 19961002; EP 0735275 A3 19980422; EP 0735275 B1 20020918; JP H08320001 A 19961203
DOCDB simple family (application)
US 61489596 A 19960313; AT 96100338 T 19960111; DE 19511522 A 19950329; DE 59609666 T 19960111; EP 96100338 A 19960111; JP 7426496 A 19960328