| 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) |
|---|
| 01/07/2009 | CN201177050Y Weight type hydraulic butterfly valve locking apparatus |
| 01/07/2009 | CN101341343A Method for detecting leakage of clutch cylinder |
| 01/02/2009 | DE19951498B4 Vorrichtung und Verfahren zur Steuerung eines strömungsmittelbetätigten Schnellkupplungssystems Apparatus and method for controlling a fluid-operated quick coupling system |
| 12/24/2008 | DE102008024982A1 Triggering device for an emergency-activating valve on a hydraulic cylinder has a line for transmitting power and triggering an emergency-activating valve |
| 12/18/2008 | WO2008116313A9 Liquid distributor in pressurized fluid system |
| 12/17/2008 | CN201166028Y Hydraulic safety device |
| 12/11/2008 | WO2008149541A1 Fluid pressure unit |
| 12/10/2008 | CN100441786C Hydraulic control device for working machine |
| 12/03/2008 | EP1651484B1 Method for monitoring a hydro-electrical brake system |
| 12/03/2008 | CN100439722C Hydraulic control apparatus and hydraulic control method |
| 12/03/2008 | CN100439721C Dynamically-monitored double valve with retained memory of valve states |
| 11/26/2008 | EP1995472A1 Hydraulic dispenser equipped with a device for detecting seizures |
| 11/26/2008 | CN201155418Y Internal and external dual feedback hydraulic self-resetting type main metering valve |
| 11/19/2008 | CN100434773C Shifting unit |
| 11/05/2008 | EP1987256A1 Control device and hydraulic pilot control |
| 10/29/2008 | EP1984630A2 Safety override circuit for pneumatic positioner and method of use thereof |
| 10/29/2008 | CN201141372Y Overflow valve device installed on valve group |
| 10/23/2008 | DE202007008628U1 Ansteuerungsvorrichtung für ein Notbetätigungsventil A driving device of a Notbetätigungsventil |
| 10/23/2008 | DE10025772B4 Proportional-Druckbegrenzungsventil mit Notfunktion Proportional relief valve with emergency function |
| 10/21/2008 | US7438086 Dynamic fluid power monitoring system for separate actuators |
| 10/16/2008 | DE102007017472A1 Hydraulic system for tilting beam placed on dump truck vehicle, has safety valve designed such that pressure variations arising between cylinder and tilting valve are transferred to tank by cylinder located in driving position |
| 10/15/2008 | EP1979578A1 An actuator arrangement and a method of operating an actuator |
| 10/15/2008 | CN101287915A Servo valve for assisting a pedal operation |
| 10/09/2008 | US20080244936 Wheel-Type Working Machine and Method of Controlling the Same |
| 10/02/2008 | WO2008116313A1 Liquid distributor in pressurized fluid system |
| 10/02/2008 | CA2682477A1 Liquid distributor in pressurized fluid system |
| 10/01/2008 | CN201125894Y Multifunctional hydraulic lock |
| 09/30/2008 | US7428922 Valve and position control using magnetorheological fluids |
| 09/24/2008 | EP1972798A1 Device for controlling the position of an actuator by a servo-valve with position memory in the event of a breakdown |
| 09/24/2008 | EP1971783A1 Method for detecting clutch cylinder leakage |
| 09/21/2008 | CA2626724A1 Actuator position controller with a servo-valve with position memory in the event of power failure |
| 09/18/2008 | DE102007020321A1 Method for operating pneumatic controlling device for supplying specified controlled air pressure into consumer line, involves guiding consumer line to user |
| 09/18/2008 | DE102007013359A1 Sicherheitseinrichtung zur Überdruckabsicherung eines druckführenden Systems Safety device for overpressure protection of a pressurized system |
| 09/17/2008 | CN201116557Y Shutoff valve and continuous casting drawing correcting machine hydraulic control system thereof |
| 09/17/2008 | CN201116137Y Hydraulic power steering gear embedded overvoltage protective device |
| 09/12/2008 | WO2008042308A3 Safe over-center pump/motor |
| 09/10/2008 | CN101260897A Hydraulic safety valve |
| 09/10/2008 | CN101259444A Discharge outlet adjustment device for heavy type hydraulic jaw crusher |
| 09/10/2008 | CN101259443A Heavy type hydraulic jaw crusher and operation method thereof |
| 09/04/2008 | WO2008105502A1 Safety device for hydraulic working machine |
| 09/04/2008 | WO2008105501A1 Safety device for hydraulic working machine |
| 09/04/2008 | DE102006046854B4 Hydrostatische Verstelleinheit mit einem Servosystem und einer das Servosystem steuernden Ventileinheit Hydrostatic adjustment unit with a servo system and a servo system controlling valve unit |
| 09/03/2008 | CN201110284Y Hydraulic control valve set for bending machine |
| 08/14/2008 | WO2008095499A1 A hydraulic actuator for a servomotor with an end lock function |
| 08/14/2008 | WO2008095498A1 A valve assembly and a hydraulic actuator comprising the valve assembly |
| 08/14/2008 | WO2008095497A1 A hydraulic actuator having an auxiliary valve |
| 08/14/2008 | CA2578482A1 Switch |
| 08/12/2008 | US7409828 Control device |
| 08/12/2008 | CA2382809C Hydraulic actuating system with electric control |
| 08/07/2008 | US20080185052 Safety shut off valve for use in hydraulic system |
| 07/31/2008 | DE102005015201B4 Elektromagnetventil Solenoid valve |
| 07/23/2008 | EP1947372A1 A gear shift system with a power assistance system |
| 07/23/2008 | CN201090557Y Crawler loader operating oil way no-voltage protection system |
| 07/23/2008 | CN201090556Y Large flow safety valve |
| 07/23/2008 | CN101225844A System and valve devcie for quickly and exigently closing hydraulic actuated valve |
| 07/15/2008 | US7398796 Valve arrangement |
| 07/12/2008 | CA2573743A1 An actuator with a protective sleeve for a piston |
| 07/09/2008 | CN201083213Y Super-high-pressure hydraulic pump station |
| 07/08/2008 | US7395662 Hydraulic control arrangement |
| 07/02/2008 | EP1937984A1 Servo valve for assisting a pedal operation |
| 07/02/2008 | CN101210581A Self-reducing resisting hydraulic cylinder |
| 06/25/2008 | CN201078362Y Hydraulic pressure control system of integration supervoltage biological treatment equipment |
| 06/05/2008 | US20080127816 Energy dissipation valves for hydraulic cylinders |
| 06/04/2008 | CN201068911Y Crammer lifting dedicated oil cylinder for preventing dropping and oil pipe fracture |
| 05/28/2008 | EP1925825A2 Relief pressure switching apparatus for hydraulic working machine |
| 05/28/2008 | EP1924774A1 Detecting of faults in a valve system and a fault tolerant control |
| 05/28/2008 | CN201065868Y Hydraulic jacking device |
| 05/21/2008 | DE102006054122A1 Fluid e.g. nitrogen, system i.e. fluid weight compensation system for vertically movable machine and equipment components, has piston freely movable back and forth within cylinder for closing and opening fluid connection in trap circuit |
| 05/14/2008 | CN201059303Y Falling-proof hydraulic cylinder |
| 05/13/2008 | US7370723 Loading machine |
| 05/08/2008 | DE10001665B4 Ventilanordnung zur Absicherung und leckölfreien Absperrung eines hydraulischen Verbrauchers Valve assembly for securing and leak-free isolation of a hydraulic consumer |
| 05/07/2008 | EP1918593A2 Depressurization apparatus for hydraulic pipe and hydraulic pipe structure |
| 05/07/2008 | CN101172489A Electronic redundant steer by wire valve |
| 05/07/2008 | CN100386545C Solenoid valve with manual buttons |
| 05/06/2008 | US7367256 Pressure switch control for attachment coupling system |
| 04/30/2008 | CN100385081C Hydraulic controller for working machine |
| 04/16/2008 | CN201047284Y Down-hole hydraulic system capable of differentiating the type of hydraulic pipe |
| 04/16/2008 | CN201046894Y Crane hydraulic oil stoppage warning device |
| 04/16/2008 | CN101162025A Combined safety valve |
| 04/16/2008 | CN101162024A Multifunctional hydraulic lock |
| 04/15/2008 | US7357150 Safety shut-off device |
| 04/13/2008 | CA2566565A1 Method and apparatus for evaluating contamination measurements |
| 04/10/2008 | WO2008042308A2 Safe over-center pump/motor |
| 04/10/2008 | US20080083324 Adjustment element with a cylinder |
| 04/10/2008 | DE102005056939B4 Vorrichtung zur Erfassung eines Versagens An apparatus for detecting a failure |
| 04/10/2008 | CA2664764A1 Safe over-center pump/motor |
| 04/09/2008 | EP1907707A1 Latchable electrohydraulic servovalve |
| 04/09/2008 | EP1714056B1 Shifting unit |
| 04/03/2008 | US20080078456 Hydrostatic variable unit with a servo system and a valve unit controlling the servo system |
| 04/03/2008 | DE102006046854A1 Hydrostatic adjustment unit, for controlling servo system by valve units, uses two magnetically actuated proportional pressure reduction valves for actuating servo-system |
| 04/02/2008 | CN201043451Y Hydraulic cylinder supercharging device of blowout preventer |
| 04/02/2008 | CN100378348C Malfunction prevention device in fluid sequence apparatus |
| 04/02/2008 | CN100378347C Double valve constructed from unitary single valves |
| 04/02/2008 | CN100378344C Dynamically-monitored double valve with anti-tiedown feature |
| 03/27/2008 | DE102004052602B4 Ventilanordnung Valve assembly |
| 03/26/2008 | CN201041175Y Heavy self-dumping vehicle hydraulic high-pressure oil pipe cracking automatic protection device |
| 03/26/2008 | CN201040250Y Discharge outlet adjustment device for heavy type hydraulic pressure jawbreaker |
| 03/19/2008 | CN201036978Y Large self-discharging vehicle goods box jack-out safety pin automatic in-position device |
| 03/18/2008 | CA2482738C Hydraulic arrangement and process for its use |
| 03/12/2008 | CN100374740C Pneumatic actuator |