| Patents for F15B 20 - Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems (2,348) |
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| 02/03/2010 | CN201396342Y Bridge-detection vehicle safety protection hydraulic control device |
| 02/03/2010 | CN201396341Y Oil cylinder protector of hydraulic grab |
| 02/03/2010 | CN201396330Y Safety valve set for pump use |
| 01/27/2010 | CN201391504Y Safety hydraulic oil cylinder |
| 01/27/2010 | CN101634320A Hydraulic equipment pipeline burst online safe continuous working system |
| 01/21/2010 | US20100011757 Safety Device for Hydraulic Working Machine |
| 01/07/2010 | DE202009012284U1 Hydraulikzylinder mit Niro-Oberfläche Hydraulic cylinder with stainless steel surface |
| 01/07/2010 | DE102008011316B4 Handnotschaltung für Pneumatiksysteme Handnotschaltung for pneumatic systems |
| 01/06/2010 | CN201377483Y Overpressure protection device for hydraulic cylinder |
| 01/06/2010 | CN101622461A Safety device for hydraulic working machine |
| 01/06/2010 | CN101622460A Safety device for hydraulic working machine |
| 01/05/2010 | CA2372760C Self-contained hydraulic esd system |
| 12/16/2009 | CN100569375C Heavy type hydraulic jaw crusher and operation method thereof |
| 12/09/2009 | EP2131046A1 Safety device for hydraulic working machine |
| 12/09/2009 | EP2131045A1 Safety device for hydraulic working machine |
| 12/09/2009 | CN101598153A Multifunctional limit valve |
| 12/03/2009 | WO2009144565A1 Fault-tolerant bleed valve assembly |
| 12/03/2009 | DE102004052073B4 Fehlersichere hydraulische Schaltung Fail-safe hydraulic circuit |
| 12/03/2009 | CA2725889A1 Fault-tolerant bleed valve assembly |
| 12/02/2009 | EP2128445A2 Method and apparatus for verifying a leak in connection with a flow inhibitor |
| 11/26/2009 | WO2009141131A1 Control device and method for a quick-acting gate valve of a steam turbine |
| 11/26/2009 | DE102008024253A1 Steuereinrichtung und -verfahren für ein Schnellschlussventil einer Dampfturbine Control device and method for a quick closing valve of a steam turbine |
| 11/25/2009 | CN101586588A Mechanical type hydraulic sound alarm |
| 11/12/2009 | DE102008023157A1 Hydraulikventilsteuerschaltung und Verfahren zur Funktionsüberprüfung einer Hydraulikventilsteuerschaltug Hydraulic valve control circuit and method for functional verification of a Hydraulikventilsteuerschaltug |
| 11/11/2009 | CN101577413A Hydraulic valve control circuit and method for checking the function of a hydraulic valve control circuit |
| 11/03/2009 | US7610989 Control system and a vehicle comprising the control system |
| 10/29/2009 | WO2009131811A1 Method for controlling an actuator |
| 10/29/2009 | DE102008020543A1 Piston-cylinder aggregate i.e. gas spring, has piston dividing cylinder into two working chambers that are proximate and distant from closed end comprising opening, and fusible plug arranged in opening |
| 10/27/2009 | US7607454 Vacuum and vacuum-breaking composite valve |
| 10/22/2009 | WO2009127349A1 Control arrangement for controlling a control valve |
| 10/21/2009 | EP2110563A2 Valve assembly with central fluid cut-off device |
| 10/13/2009 | CA2484328C Integrated three function valve |
| 10/06/2009 | CA2535326C Compact manifolded fail-safe hydraulic control system |
| 09/30/2009 | EP1881241B1 Failure detection device for hydraulic motor and hydraulic drive vehicle |
| 09/29/2009 | US7594396 Hydraulic controller for working machine |
| 09/29/2009 | CA2511043C Loading machine |
| 09/23/2009 | CN101542137A Fluid pressure unit |
| 09/23/2009 | CN101537984A Hoist motor closed type hydraulic system for preventing pipelines from bursting and control method thereof |
| 09/17/2009 | WO2009114049A1 Hydraulic actuator with floating pistons |
| 09/17/2009 | DE10348441B4 Pneumatisches Sicherheitsventil für Druckluftsysteme Pneumatic safety valve for compressed air systems |
| 09/17/2009 | DE102008014539A1 Hydromechanisches System Hydro-Mechanical System |
| 09/17/2009 | DE102008000679A1 Hydraulische Steuerungsanordnung zum Steuern eines variablen Fluidvolumenstroms Hydraulic control arrangement for controlling a variable fluid volume flow |
| 09/03/2009 | US20090222233 Partial stroke testing system coupled with fuel control valve |
| 09/03/2009 | DE102008011316A1 Emergency hand gearshift for pneumatic systems, particularly for pneumatic door controller for vehicle, has compressed air source and compressed air supply line for pneumatic system, where auxiliary circuit is connected to supply line |
| 09/02/2009 | EP1654465B1 Hydraulic control apparatus and hydraulic control method |
| 08/20/2009 | WO2009100734A1 Soft start device for compressed air systems and method for operating a soft start device |
| 08/20/2009 | DE10113457B4 Verfahren zur Steuerung von Spulen einer elektromagnetischen Steuereinrichtung und Vorrichtung zur Durchführung dieses Verfahrens Method for controlling an electromagnetic coil control means and apparatus for carrying out this method |
| 08/20/2009 | CA2715222A1 Soft start device for pneumatic systems and method for the operation of a soft start device |
| 08/12/2009 | CN100526690C Self-regulating brake oil pressure loop |
| 08/05/2009 | EP2085622A1 Continuous compressed air leakage monitoring system and method |
| 08/05/2009 | EP1511667B1 Control system and a vehicle comprising the control system |
| 08/05/2009 | CN201284765Y Hydrostatic transmission integrated with gear pump |
| 08/05/2009 | CN101498281A Direct drive type hydraulic variable pitch controlling mechanism for wind power generator |
| 07/29/2009 | CN101493107A Hydraulic cylinder having rod safety device |
| 07/22/2009 | CN101490426A A hydraulic connection assembly with a pressure discharge control, positionable between an onboard hydraulic circuit of an engineering vehicle and a removable hydraulic equipment |
| 07/08/2009 | EP1907707B1 Latchable electrohydraulic servovalve |
| 07/01/2009 | EP1361379B1 Hydraulic motor trouble detector and hydraulically driven vehicle |
| 06/24/2009 | EP1979578B1 An actuator arrangement and a method of operating an actuator |
| 06/10/2009 | EP2066908A2 Safe over-center pump/motor |
| 06/04/2009 | WO2009070358A1 Dual redundant servovalve |
| 05/28/2009 | DE102007061869A1 Sicherheitsschwenkantrieb Security rotary actuator |
| 05/28/2009 | DE102007061868A1 Double piston-swivel drive for e.g. switching industrial armature, has energy storage activated in danger condition by safety elements, such that energy storage displaces pistons independent of functional state of drive in given position |
| 05/27/2009 | CN100491749C Power generating equipment regulating valve oil motor servo control system |
| 05/26/2009 | CA2504225C Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof |
| 05/20/2009 | DE202009003010U1 Druckluft-Wartungsgerät Compressed air maintenance device |
| 05/14/2009 | DE102007053841A1 Hydrostatic drive system for use as operating hydraulic system in drive machine i.e. floor conveyor, has pressure gauge pressurized in direction of flow-through position by control signal, and safety device exhibiting safety position |
| 05/12/2009 | US7530226 Access method and apparatus that limit motion according to load and position |
| 05/07/2009 | WO2009056733A1 Hydraulic system for an aircraft |
| 05/07/2009 | US20090114284 Detecting of faults in a valve system and a fault tolerant control |
| 05/07/2009 | DE10323435B4 Servolenkungsvorrichtung Power steering apparatus |
| 05/06/2009 | EP2056177A2 Proportional valve means and method |
| 05/06/2009 | EP2054635A1 A hydraulic connection assembly with a pressure discharge control, positionable between an onboard hydraulic circuit of an engineering vehicle and a removable hydraulic equipment |
| 05/06/2009 | EP1361378B1 Hydraulic motor trouble detector and hydraulically driven vehicle |
| 04/30/2009 | DE102007051525A1 Hydraulisches Versorgungssystem mit einer Verstellpumpeneinrichtung Hydraulic supply system with a Verstellpumpeneinrichtung |
| 04/23/2009 | WO2008151727A3 Control arrangement with pipe burst safety function |
| 04/23/2009 | DE10004605B4 Hydraulik-Logik-Kreuzkopplung zwischen getrennten redundanten Servoaktuatoren Hydraulic logic crosstalk between separate redundant servo actuators |
| 04/15/2009 | CN101408210A Hydraulic system with hydraulic cylinder isolation valve |
| 04/09/2009 | WO2009046184A1 High throughput double valve with reduced outlet pressure during a faulted state |
| 04/01/2009 | CN100473845C Valve arrangement |
| 03/31/2009 | US7509701 Lifting system |
| 03/18/2009 | CN101389869A Control device and hydraulic pilot control |
| 03/12/2009 | US20090064655 Actuator Arrangement and a Method of Operating an Actuator |
| 03/12/2009 | DE102005058453B4 Schaltung zur Freigabe oder Sperrung hydraulischer Betätigungseinrichtungen Circuit for enabling or disabling of hydraulic actuators |
| 03/05/2009 | DE102007041583A1 Valve unit has safety device with first and second selector valves connected upstream to first and second pilot valves respectively, and each having two selectively blockable inlets and one outlet connected to associated pilot valve |
| 03/04/2009 | CN101379301A Safety override circuit for pneumatic positioner and method of use thereof |
| 02/24/2009 | US7494131 Assembly for a chassis stabilizing system |
| 02/18/2009 | CN101368584A Novel emergency protection mechanism of three-stage electrohydraulic servo valve |
| 02/18/2009 | CN100462270C Control system and a vehicle comprising the control system |
| 02/10/2009 | CA2638610A1 Hydraulic isolating manifold |
| 02/04/2009 | CN100458391C Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof |
| 01/29/2009 | DE102007034746A1 Hydrostatic drive system for use in internal combustion engine, has non-return valve device subjected to flow position in functional position of safety valve device and subjected to locking position in safety position |
| 01/29/2009 | DE102005056039B4 Hydraulisches / pneumatisches Steuerventil mit Fail-Safe Funktion Hydraulic / pneumatic control valve with fail-safe function |
| 01/28/2009 | EP2018458A1 Valve block, tool attachment, a working machine and the use of a valve block |
| 01/28/2009 | CN201186738Y Cargo freighter hydraulic hatch cover oil pump remote controlling device |
| 01/22/2009 | WO2009010077A1 Valve for redundancy applications |
| 01/22/2009 | DE202008014393U1 Hydraulische Steuerung Hydraulic Steering |
| 01/21/2009 | CN201184335Y Water-proof apparatus of hydraulic cylinder |
| 01/20/2009 | US7478884 Hydraulic switching mechanism for longwall supports |
| 01/15/2009 | DE102007032207A1 Sicherheitseinrichtung für Druckmedien einschließende Behälter Safety device for media enclosing container |
| 01/08/2009 | DE202008011968U1 Sicherheitseinrichtung für Gasanlagen Safety device for gas equipment |