| 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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| 03/13/2013 | CN202788794U Blowout preventer and drilling machine linkage safety device |
| 03/13/2013 | CN102971466A Hybrid construction machine |
| 03/13/2013 | CN102966619A Safety protection device for hydraulic system |
| 03/06/2013 | CN202768537U Protection system for hydraulic system of heading machine |
| 02/20/2013 | CN202746330U Triple hydraulic driving protecting device of thickener |
| 02/06/2013 | CN102913513A High-reliability directly operated type safety valve device with hydraulic balance principle |
| 01/30/2013 | CN102906346A Hybrid construction machinery |
| 01/30/2013 | CN101936319B Main oil-passage no-pressure warning device of hydraulic system |
| 01/23/2013 | CN202690590U Multistage protection hydraulic device |
| 01/23/2013 | CN202690589U Explosion-proof valve of cylinder |
| 01/17/2013 | WO2013008964A1 Hydraulic actuator damping control system for construction machinery |
| 01/17/2013 | DE10308910B4 Hydraulisches Steuerventil A hydraulic control valve |
| 01/17/2013 | DE102006007880B4 Abschaltverteiler Abschaltverteiler |
| 01/17/2013 | DE10152414B4 Hydraulikzylinder Hydraulic cylinder |
| 01/16/2013 | EP2545286A1 Double valve constructed from unitary single valves |
| 01/09/2013 | EP2543892A2 Hydraulic cylinder |
| 01/09/2013 | CN202655996U Pressure maintaining device for hydraulic system of numerical control plano-milling machine |
| 01/03/2013 | DE102008020543B4 Kolben-Zylinderaggregat Piston-cylinder assembly |
| 01/02/2013 | EP2541074A1 Fail-freeze device for positioner |
| 01/02/2013 | CN202646234U Hydraulic current-limiting safe explosion-proof valve |
| 01/02/2013 | CN102852885A Excavator cylinder with safety valve |
| 01/02/2013 | CN101907114B Overload isolating valve |
| 12/19/2012 | EP2535468A1 Hydraulic excavator attachment control device |
| 12/19/2012 | CN202611629U Pneumatic control protection device for drill rod power tongs |
| 12/19/2012 | CN202609041U Marine hatch cover hydraulic control system with detection device and warning device |
| 12/19/2012 | CN102829026A Overload protection control method, device and system and engineering machinery |
| 12/12/2012 | CN202597334U Buffering safety valve |
| 12/06/2012 | US20120310489 Pump Overspeed Protection Method And Machine Using Same |
| 12/06/2012 | DE102009037120B4 Pneumatische Sicherheitsventileinrichtung Pneumatic safety valve device |
| 12/06/2012 | DE102008031328B4 Sicherheitsventil für eine pneumatische Getriebesteuerung Safety valve for pneumatic transmission control |
| 12/05/2012 | CN202579460U Hydraulic emergency operation module |
| 11/29/2012 | WO2012118564A3 Fault detection, isolation and reconfiguration systems and methods for controlling electrohydraulic systems used in construction equipment |
| 11/29/2012 | DE10205859B4 Hydraulische Hilfskraftlenkung Hydraulic power steering |
| 11/28/2012 | EP2527660A1 Method for determining the static force developed by a servocontrol |
| 11/28/2012 | CN202560699U Monitoring device of high-pressure hydraulic source |
| 11/28/2012 | CN202560698U Hydraulic system protection apparatus, hydraulic system and engineering mechanical apparatus |
| 11/28/2012 | CN202560691U Protection device for hydraulic cylinder |
| 11/28/2012 | CN101994727B Balance valve having two-stage pressure buffering protection function |
| 11/23/2012 | DE202012104197U1 Dosierer mit Sicherheitsschließzylinder Dispenser with safety lock cylinder |
| 11/22/2012 | WO2012157510A1 Work machine |
| 11/22/2012 | US20120291427 Attachment control apparatus for hydraulic excavator |
| 11/21/2012 | EP2525104A1 Emergency shut-off |
| 11/21/2012 | CN102791929A Rotating parking brake control device for construction machinery |
| 11/15/2012 | WO2012153880A1 Hybrid excavator including a fast-stopping apparatus for a hybrid actuator |
| 11/14/2012 | CN202531545U All-monitoring hydraulic control system |
| 11/14/2012 | CN202531544U Core shaft positioning protection device of oil cylinder position sensor |
| 11/14/2012 | CN101622461B Safety device for hydraulic working machine |
| 11/14/2012 | CN101389869B Control device and hydraulic pilot control |
| 11/08/2012 | WO2012150753A1 Air lifting system having piston locking means |
| 11/07/2012 | EP2519752A1 Apparatus to increase a force of an actuator having an override apparatus |
| 10/31/2012 | CN202510460U Safety protection device preventing leakage of hydraulic oil of engineering vehicle |
| 10/26/2012 | WO2012144665A1 Hydraulic circuit for controlling booms of construction equipment |
| 10/24/2012 | EP2514976A2 Pressurised container with defined leakage path |
| 10/24/2012 | CN102753840A Apparatus to increase a force of an actuator having an override apparatus |
| 10/24/2012 | CN101929491B Balance valve with secondary pressure overflow |
| 10/10/2012 | CN202483990U Protection device for hydraulic directional system |
| 09/27/2012 | WO2012128291A1 Mixer drum driving device |
| 09/27/2012 | WO2012128132A1 Hybrid construction machinery and auxiliary control device used therein |
| 09/27/2012 | DE10224730B4 Hydraulische Steuereinrichtung Hydraulic control device |
| 09/20/2012 | DE10224731B4 Hydrostatisches Antriebssystem Hydrostatic drive system |
| 09/19/2012 | CN102678678A Hydraulic emergency operation module |
| 09/19/2012 | CN102677735A Construction machine |
| 09/07/2012 | WO2012118551A1 Methods and apparatus for bypassing a positioner in an active control loop |
| 09/07/2012 | WO2012087012A3 Hydraulic system for construction machine including emergency control unit for electric hydraulic pump |
| 09/07/2012 | CA2828854A1 Fault detection, isolation and reconfiguration systems and methods for controlling electrohydraulic systems used in construction equipment |
| 09/07/2012 | CA2828036A1 Methods and apparatus for bypassing a positioner in an active control loop |
| 08/30/2012 | DE102012202950A1 Elektrohydraulisches Verfahren für eine Sensor-Störungssicherung Electro-hydraulic method for sensor fault backup |
| 08/29/2012 | EP2491254A1 Safety feature for stuck valve |
| 08/23/2012 | WO2011127153A4 Energy storage device, actuator and method |
| 08/22/2012 | CN202391382U Wellhead surface safety valve control system |
| 08/16/2012 | WO2012109558A1 Load sense control with standby mode in case of overload |
| 08/16/2012 | DE102011010878A1 Tip moment delimiter for hydraulic clutch actuator mounted in motor vehicle, has bypass port that is opened and closed respectively so that pressure of fluid flowing on transmitter side portion and receiver side portion is controlled |
| 08/16/2012 | DE102004028054B4 Elektro-magnetisch betätigtes Steuerventil Electromagnetically actuated control valve |
| 08/16/2012 | CA2826759A1 Load sense control with standby mode in case of overload |
| 08/09/2012 | WO2012104046A1 Hydraulic actuating assembly |
| 08/09/2012 | DE10254605B4 Steuerventileinrichtung Control valve means |
| 08/09/2012 | DE102011012305A1 Hydraulische Stellanordnung Hydraulic actuator assembly |
| 08/01/2012 | CN202360510U Hydraulic cylinder with protective cover |
| 08/01/2012 | CN202360509U Automatic protection device for preventing hydraulic pipes of heavy dump trucks from exploding |
| 08/01/2012 | CN202360500U Hydraulic limit protection device for rotary cylinders of tunnel boring machines |
| 07/25/2012 | EP2479440A1 Safety control double valve for power-off protection press |
| 07/25/2012 | CN102606557A Health evaluation method for hydraulic system based on fault observer and SOM (self-organized mapping) |
| 07/25/2012 | CN101832310B Oil pipe explosion-proof device |
| 07/19/2012 | DE102011002692A1 Hydraulikspeichersystem Hydraulic accumulator system |
| 07/18/2012 | CN102588388A Start protective device, method and engineering machinery of hydraulic system |
| 07/11/2012 | EP1859119B1 Method for protecting against jamming and jamming protection device |
| 07/11/2012 | CN202326522U 液压设备过载保护装置 Hydraulic equipment overload protection device |
| 07/11/2012 | CN202326473U 起重永磁铁防漏油装置 Permanent magnet lifting oil spill prevention device |
| 07/11/2012 | CN202325257U 一种钻机桅杆保护液压装置 One kind of rig mast hydraulic device protection |
| 07/11/2012 | CN202322190U 液压式cng加气子站拖车气动顶升装置 Hydraulic cng filling sub-stations trailer pneumatic lifting device |
| 07/11/2012 | CN102575459A Hydraulic excavator attachment control device |
| 07/10/2012 | US8215227 Detecting of faults in a valve system and a fault tolerant control |
| 07/04/2012 | CN202301287U 一种能快速更换的油缸保护罩 Way to quickly replace the fuel tank shield |
| 07/04/2012 | CN102549273A Electro-hydraulic controller |
| 07/04/2012 | CN102536964A Protection device for hydraulic reversing system |
| 07/04/2012 | CN102536963A Engineering machinery as well as protection method and protection method of landing leg horizontal oil cylinder thereof |
| 06/28/2012 | WO2012087012A2 Hydraulic system for construction machine including emergency control unit for electric hydraulic pump |
| 06/28/2012 | DE102010056102A1 Control device of e.g. actuating device for operating system, has comparison circuit that compares measured characteristic value of characteristic curve of actuating device and theoretical characteristic value |
| 06/28/2012 | DE102010055716A1 Hydraulic drive has hydraulic motor, where control medium is provided, by which control pressure or control signal is adjustable regardless of inlet pressure |
| 06/27/2012 | CN101718284B Composite control hydraulic system for frame beam |