| 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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| 01/11/2005 | US6840259 Dynamically-monitored double valve with retained memory of valve states |
| 01/11/2005 | US6840258 Dynamically-monitored double valve with anti-tiedown feature |
| 01/06/2005 | US20050002796 Method for controlling a pressure supply device in a hydraulic circuit |
| 01/05/2005 | DE202004015468U1 Softstartvorrichtung für Druckluftsysteme Soft start device for compressed air systems |
| 01/05/2005 | DE10336058B3 Supply pressure provision device e.g. for pneumatic control for electrified rail vehicle current take-off, has main air system containing compressor and auxiliary air system with pressurized gas flask |
| 01/04/2005 | US6837045 Electrohydraulic lifting control device for industrial trucks |
| 12/30/2004 | US20040262858 Drive unit for a motor vehicle axle stabilizer |
| 12/30/2004 | US20040261406 Hydraulic circuit for option tool of heavy equipment |
| 12/30/2004 | US20040261405 Hydraulic circuit for heavy equipment option apparatus using boom confluence spool |
| 12/23/2004 | US20040256013 Control system for air-operated devices |
| 12/23/2004 | DE10325295A1 Hydraulische Steueranordnung The hydraulic control arrangement |
| 12/16/2004 | WO2004109019A1 Hydraulic control arrangement |
| 12/16/2004 | US20040250675 Hydraulic cylinder comprising valves |
| 12/15/2004 | EP1486681A1 Electro-hydraulic control device and lifting apparatus |
| 12/09/2004 | US20040244575 Electrical and hydraulic control system for attachment coupling system |
| 12/09/2004 | US20040244232 Hydraulic controller for working machine |
| 12/08/2004 | CN2661988Y Hydraulic control locking device for hoisting ratchet |
| 12/02/2004 | WO2004104427A1 A hydraulic system for a work machine |
| 12/02/2004 | WO2004104379A1 Bearing for axially mounting a rotor of a gas turbine, and gas turbine |
| 12/02/2004 | US20040238051 Fail safe apparatus for a direct-drive servovalve |
| 12/02/2004 | US20040237518 Integrated three function valve |
| 12/01/2004 | CN1550617A Hydraulic controller for working machine |
| 11/30/2004 | US6823669 Transfer valve system |
| 11/25/2004 | DE10215558B4 Fehlfunktionserfassungsvorrichtung eines Balgspeichers für ein druckbeaufschlagtes Fluid Malfunction detection device of a bellows element for a pressurized fluid |
| 11/24/2004 | EP1479875A1 Axial thrust bearing for the shaft of a gas turbine |
| 11/18/2004 | DE10128354B4 Vorrichtung zur Verhinderung des unbeabsichtigten Wiederanlaufens Device for preventing unintentional restarting of |
| 11/17/2004 | EP1477686A1 Hydraulic controller for working machine |
| 11/16/2004 | US6817175 Hydraulic system architecture for controlling steering |
| 11/04/2004 | DE10050542B4 Sicherheitsschaltung gegen eine unerwünschte Inbetriebnahme eines Montageautomaten insbesondere während des Einrichtbetriebes sowie Verfahren zum Zuschalten der Sicherheitsschaltung Safety circuit against unwanted start-up of an assembly machines, especially during the setup mode and method for switching the safety circuit |
| 10/21/2004 | DE20309190U1 Elektrohydraulische Steuervorrichtung und Hebezeug Electrohydraulic control device and lifting equipment |
| 10/21/2004 | DE19647169B4 Steuervorrichtung für Fahrsystem bei Baufahrzeugen Control device for driving system construction vehicles |
| 10/19/2004 | US6805161 Hydraulic valve system |
| 10/14/2004 | DE10242724B4 Antriebseinheit für einen Kraftfahrzeugachsstabilisator Drive unit for a Kraftfahrzeugachsstabilisator |
| 10/07/2004 | US20040195909 Hydraulic circuit architecture |
| 10/07/2004 | US20040194832 Dash control valve with two step function for park release |
| 10/07/2004 | US20040194458 Transfer valve system |
| 09/30/2004 | US20040187940 Pilot switching valve apparatus and a method of switching pilot switching valve |
| 09/29/2004 | CN1168906C Cross flow with crossmirror and lock out capability valve |
| 09/23/2004 | DE19949874B4 Sicherheitsventil Safety valve |
| 09/09/2004 | DE4314801B4 Hydraulische Anlage, insbesondere für eine Abkantpresse Hydraulic system, especially for a press brake |
| 09/09/2004 | DE10308910A1 Hydraulisches Steuerventil A hydraulic control valve |
| 09/07/2004 | US6786132 Control device for hydraulically operated hoisting mechanisms |
| 09/02/2004 | US20040168731 Hydraulic control valve |
| 09/02/2004 | US20040168729 Safety device for fluid operated machines |
| 09/01/2004 | EP1451493A1 Method for controlling a pressure supply device in a hydraulic circuit |
| 08/26/2004 | DE202004009302U1 Druckmittelbetriebener Arbeitszylinder mit mechanischer Wegsperrung im drucklosen Zustand A fluid operated cylinder with mechanical Wegsperrung at zero pressure |
| 08/24/2004 | US6779776 Intrinsically safe electrically magnetically operated hydraulic valve |
| 08/12/2004 | DE19748758B4 Motorischer Stellantrieb Motorised drive |
| 08/10/2004 | US6772786 Self-contained hydraulic ESD system |
| 08/05/2004 | DE10253871B3 Armored vehicle door hatch movement device, using controlled operation of hydraulic drive for opening and closing movements of door hatch |
| 08/04/2004 | EP1220993B1 Safety valve |
| 08/03/2004 | US6769250 Fluidic system with a safety function |
| 07/28/2004 | CN1515800A Hydraulic circuit and control method for rotary breaker |
| 07/27/2004 | US6766681 Malfunction detection device of a bellows type accumulator for pressurized fluid |
| 07/20/2004 | US6764059 Valve isolation system |
| 07/15/2004 | US20040136786 Hydraulic control arrangement for a pipe relining machine |
| 07/14/2004 | EP1436511A1 Method for restricting leakage of hydraulic oil in a rock drilling rig |
| 07/06/2004 | US6758241 Safety valve |
| 07/01/2004 | DE10360074A1 Hydraulic system, especially for motor vehicles, has excess pressure valve arranged in system to limit the pressure in system to a maximum pressure; the maximum pressure is temperature-dependent |
| 06/30/2004 | EP1433971A2 Hydraulic system |
| 06/22/2004 | US6752171 Control-valve drive with sensor unit for detecting the position of the valve |
| 06/17/2004 | WO2004051121A2 Circuit for operating a valve closure system |
| 06/10/2004 | US20040108478 Circuit for operating a valve closure system |
| 06/03/2004 | DE10254605A1 Operational control system for synchronous raising and lowering of several hydraulic actuators in parallel uses control valves connected to single pump with single fluid reservoir |
| 06/02/2004 | EP1009937B1 Protective circuit |
| 05/27/2004 | WO2004044437A1 Draining of oil leak in a hydraulic cylinder |
| 05/27/2004 | DE10253023A1 Betätigungseinrichtung mit Wegsteuerung Actuator with position control |
| 05/25/2004 | US6739129 Electrohydraulic motor pump aggregate, attachable element and pressure limiting valve |
| 05/19/2004 | EP1216361B1 Hydraulic actuating system with electric control |
| 05/06/2004 | DE10217037B4 Sicherheitssteuervorrichtung Security control apparatus |
| 05/04/2004 | US6729696 Two step park release valve |
| 05/04/2004 | CA2336265C Bidirectional check valve for hydraulic system |
| 04/21/2004 | EP1410941A2 Hydraulic circuit for actuation of an automated vehicle transmission |
| 04/21/2004 | EP1409792A1 Lifting system |
| 04/20/2004 | US6722390 Hydraulic double valve |
| 04/07/2004 | EP1404978A2 Hydraulic circuit architecture |
| 04/07/2004 | EP1404976A2 Hydraulic actuating system and check valve which can be hydraulically blocked |
| 04/01/2004 | WO2004026601A1 Drive unit for a motor vehicle stabilizer |
| 04/01/2004 | WO2003008811A8 Hydraulic circuit architecture for an aircraft braking system |
| 04/01/2004 | US20040061088 Valve isolation system |
| 04/01/2004 | DE10242724A1 Antriebseinheit für einen Kraftfahrzeugachsstabilisator Drive unit for a Kraftfahrzeugachsstabilisator |
| 03/31/2004 | EP1401597A1 Safety device for fluid operated machines |
| 03/25/2004 | WO2004025127A1 Hydraulic device |
| 03/23/2004 | US6708489 Pneumatic actuator |
| 03/04/2004 | WO2003029659A3 Main piston servo control system which is fitted with an automatic fault containment system |
| 03/03/2004 | EP1392983A1 Hydraulic control arrangement for a pipe relining machine |
| 02/26/2004 | WO2004016954A1 Reversible, modular fluid actuator with an integrated fluid manifold |
| 02/19/2004 | DE4324177B4 Hydraulische Steuervorrichtung Hydraulic control device |
| 02/18/2004 | EP1389686A1 Electro-hydraulic brake module |
| 02/12/2004 | WO2004013496A1 Hydraulic cylinder |
| 02/12/2004 | WO2002061288A3 Hydraulic actuating system and check valve which can be hydraulically blocked |
| 02/12/2004 | DE20308055U1 Electro pneumatic control valve system with failsafe isolation of pneumatic drive and with warning signals if electronic control fails |
| 02/12/2004 | DE10233669A1 Hydraulikzylinder Hydraulic cylinder |
| 02/11/2004 | CN1473751A Hydraulic system controlled by electricity for lowering crane frame under emergency condition |
| 02/04/2004 | EP1387089A2 Hydraulic actuator circuit |
| 01/29/2004 | US20040017176 Industrial truck with charging function |
| 01/29/2004 | DE4417204B4 Vorgesteuertes Servoventil Pilot operated servo valve |
| 01/27/2004 | CA2124429C Pilot-operated servo valve |
| 01/21/2004 | EP1135615B1 Directional valve |
| 01/20/2004 | US6679281 Switching device for a machine |