| 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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| 10/10/2013 | WO2013152107A1 Remote actuation of safety device |
| 10/09/2013 | CN103342002A Oil press failure monitoring system and processing method thereof |
| 10/08/2013 | US8554401 Safety device for hydraulic working machine |
| 10/02/2013 | EP2644907A1 Hydraulic cylinder system |
| 10/02/2013 | CN103339390A Fail-safe actuation system |
| 09/26/2013 | WO2013140960A1 Mixer drum drive device |
| 09/26/2013 | US20130251499 Energy extraction device and operating method |
| 09/25/2013 | EP2642134A1 Hydraulic cylinder with variable cushion orifice |
| 09/25/2013 | CN203214466U Flow-regeneratable hydraulic locking valve device |
| 09/20/2013 | DE202011110379U1 Sicherheitsbauteil Safety component |
| 09/19/2013 | US20130239797 Hydraulic cylinder system |
| 09/18/2013 | EP2638297A1 Hydraulic or pneumatic drive for actuating a fitting comprising a control valve or selector valve |
| 09/18/2013 | CN203201900U 液压缸 Hydraulic cylinder |
| 09/12/2013 | DE102012004921A1 Cylinder piston device for e.g. hydraulic drive of rotation speed-variable pump, has scalable intermediate pressure chamber arranged between pistons, and adjustable pressure chambers acting in opposite adjustable directions of one piston |
| 09/11/2013 | CN203189391U Lift cylinder protecting device |
| 09/11/2013 | CN103291684A Gas cylinder actuator with overtravel safety device |
| 09/11/2013 | CN103291675A Numerically-controlled bending machine hydraulic control system capable of achieving valve core position electrical monitoring |
| 09/11/2013 | CN101983289B Hydraulic actuator with floating pistons |
| 09/06/2013 | WO2013129946A1 Locking extension device |
| 09/06/2013 | WO2013106839A3 Method and apparatus for deactivating a hydraulic device that is leaking hydraulic oil |
| 09/04/2013 | CN203176075U Remote control system pump station provided with hydraulic one-way pump type hydraulic valve |
| 09/04/2013 | CN203176071U Remote control system pump station provided with two-way pump type hydraulic valve |
| 09/04/2013 | CN203176065U Safety protection device for coiling head of coiling machine |
| 09/04/2013 | CN103282675A Hydraulic system for construction machine including emergency control unit for electric hydraulic pump |
| 09/04/2013 | CN103277358A Flushing method for overcoming jamming of servo valve |
| 08/28/2013 | EP2631496A2 Fluid control, in particular pneumatic control for testing machines |
| 08/28/2013 | CN103267043A Integrated automatic alarm device of hydraulic system |
| 08/22/2013 | WO2013098800A4 Valve positioning system with bleed prevention |
| 08/22/2013 | DE102013001581A1 Hydraulische Schaltung für den Strebausbau Hydraulic circuit for the longwall |
| 08/21/2013 | CN103261708A A hydraulic device, a vehicle comprising such a hydraulic device and the use of such a hydraulic device for tilting of a cab arranged on a chassis |
| 08/14/2013 | EP2626474A1 Hybrid construction machine |
| 08/08/2013 | WO2013113317A1 Hydraulic system primarily for pitch control |
| 08/01/2013 | DE102012001615A1 Modulanordnung Module assembly |
| 07/31/2013 | CN203098469U Protection device, preventing hydraulic system from working in oil lack condition, for concrete pumping machine |
| 07/31/2013 | CN203098468U Oil pressure device for preventing internal leakage of electromagnetic valve |
| 07/24/2013 | CN203081906U Grate cooler hydraulic cylinder protection device |
| 07/24/2013 | CN103216499A Hydraulic pump zero-load start device |
| 07/18/2013 | WO2013106839A2 Method and apparatus for deactivating a hydraulic device that is leaking hydraulic oil |
| 07/18/2013 | WO2013106690A1 Automatic valve shutoff device and methods |
| 07/17/2013 | CN203067417U Automatic oil leakage protective device |
| 07/17/2013 | CN203067416U Peak-pressure-removal protection device of injection molding machine |
| 07/17/2013 | CN203066853U Full hydraulic top drive drilling machine feed hydraulic system |
| 07/17/2013 | CN103206424A Manual and automatic control system for realizing single-action control through pneumatic double-action executing mechanism with gas storage tank |
| 07/11/2013 | WO2013103166A1 Cylinder cushion device for construction machine |
| 07/10/2013 | EP2613060A1 Hydraulic circuit for construction equipment |
| 07/10/2013 | CN203051311U Self-reset anti-explosion valve for hydraulic pressure |
| 07/10/2013 | CN203051310U Liquid level alarm shutdown device of hydraulic station |
| 07/04/2013 | WO2013098800A1 Valve positioning system with bleed prevention |
| 07/04/2013 | WO2012082018A8 A hydraulic device, a vehicle comprising such a hydraulic device and the use of such a hydraulic device for tilting of a cab arranged on a chassis |
| 07/03/2013 | CN103189656A Hydraulic cylinder with variable cushion orifice |
| 06/26/2013 | CN203023176U Oil hydraulic pump protective device and oil hydraulic pump |
| 06/26/2013 | CN203023175U Anti-overloading protective device of hydraulic system |
| 06/26/2013 | CN203023174U Onboard hydraulic valve block protective box of car dumper |
| 06/26/2013 | CN203023154U Oil storage cup and vehicle |
| 06/26/2013 | CN103174693A Flow regeneration hydraulic lock valve device |
| 06/19/2013 | CN203009458U Heading machine and hydraulic pressure protective device for preventing chains of heading machine transport machine from being blocked |
| 06/12/2013 | CN202991711U Mechanical stop type pressure overload protection structure for piston type energy accumulator |
| 06/06/2013 | DE102011119788A1 Hydraulic drive system has valve assembly for controlling respective fluid flow, which is provided with primary and secondary valve sub-assembly to perform same switching function, in which valve sub-assemblies are connected in series |
| 06/05/2013 | CN202971419U Hydraulic control system with safety protection for hydraulic machine tool |
| 06/05/2013 | CN202971418U High-reliability direct-acting safety valve device with hydraulic balance principle |
| 06/05/2013 | CN103133459A Spill early warning method and device and engineering machinery for hydraulic system |
| 06/05/2013 | CN102146942B Overload protecting system of hydraulic device of rescuing and obstacle-clearing car |
| 05/22/2013 | EP2593698A2 Adjustable pilot-actuated valve |
| 05/16/2013 | WO2013069374A1 Closed hydraulic circuit system |
| 05/16/2013 | DE102011118536A1 Safety device used in hydraulic system, has bypass device to move valve element in closing position for blocking fluid-conveying connection between connection ports during appropriate pressure loss |
| 05/08/2013 | CN103089736A Balance valve and differential pressure protection controlling method of two-level protection overflow valve thereof |
| 05/08/2013 | CN102301171B Actuator device having an open/close valve |
| 05/01/2013 | CN202914426U Safety protection device for hydraulic system |
| 05/01/2013 | CN103080566A Hydraulic circuit for construction equipment |
| 05/01/2013 | CN103080429A Filter clogging detection device of construction machinery |
| 04/25/2013 | WO2013059773A1 Volume booster with seat load bias |
| 04/25/2013 | CA2852741A1 Volume booster with seat load bias |
| 04/24/2013 | CN202900839U Explosion relief valve |
| 04/24/2013 | CN103062157A Safety precaution method and system for pitching mechanism of stacker-reclaimer |
| 04/17/2013 | CN202883554U Hopper oil cylinder pipeline anti-explosion device of paver |
| 04/17/2013 | CN202882915U Oil leakage fault detecting control device for heading machine |
| 04/17/2013 | CN103047223A Automatic follow-up oil cylinder protective device |
| 04/10/2013 | CN202867424U Safe self-protection structure of large-size high-pressure hydraulic cylinder |
| 04/10/2013 | CN202867402U Built-in safety valve of oil cylinder |
| 04/10/2013 | CN103038030A Apparatus, method and program for controlling elastic actuator drive mechanism |
| 04/10/2013 | CN103032413A Safe and stable valve for hydraulic servo system |
| 04/10/2013 | CN103032412A Hydraulic control system with safety protection function for hydraulic machine tool |
| 04/10/2013 | CN103032020A Hydraulic feeding system of full-automatic top drive drilling machine |
| 04/10/2013 | CA2791775A1 Fault detection process and device for a servovalve |
| 04/04/2013 | WO2013046630A1 Liquid pressure unit |
| 04/04/2013 | DE102007013359B4 Sicherheitseinrichtung zur Überdruckabsicherung eines druckführenden Systems Safety device for overpressure protection of a pressurized system |
| 04/03/2013 | EP2574797A2 Rotary control valve |
| 04/03/2013 | CN202851524U Protection mechanism of support leg oil cylinder |
| 04/03/2013 | CN103016455A Anti-explosion valve |
| 04/03/2013 | CN101962068B Hydraulic control system for fin stabilizer |
| 03/27/2013 | EP2573281A1 Hybrid construction machinery |
| 03/27/2013 | CN202836861U Analog quantity differential pressure transducer and blocking alarm system |
| 03/27/2013 | CN202832473U Overload protective system of drilling machine |
| 03/27/2013 | CN103003579A Double valve constructed from unitary single valves |
| 03/27/2013 | CN101709726B Hydraulic control system of beam transporting vehicle |
| 03/21/2013 | DE112011101643T5 Steuereinrichtung für eine Dreh-Feststellbremse bei Baumaschinen Control device for a rotary parking brake in Construction |
| 03/20/2013 | CN202811655U Power-off protection hydraulic power unit |
| 03/14/2013 | WO2013035425A1 Construction machine |
| 03/14/2013 | DE102011082585A1 Dämpfungseinrichtung eines hydraulischen Aggregats Damping means of a hydraulic unit |
| 03/13/2013 | CN202789856U Limiting protection device of mechanical part |