Patents
Patents for F15B 9 - Servomotors with follow-up action, i.e. in which the position of the actuated member conforms with that of the controlling member (1,862)
11/2005
11/30/2005EP1600641A1 Hydraulic device
11/29/2005US6968771 Actuator cylinder
11/24/2005DE19937597B4 Druckmittelbetriebener Stellantrieb Pressure medium operated adjustment actuator
11/23/2005CN1699107A Power steering device
11/16/2005EP1595079A1 Accurate fluid operated cylinder positioning system
11/15/2005US6964322 Method and apparatus for synchronizing a vehicle lift
11/10/2005US20050247455 Hydraulic circuit and method for operating a gripping device
11/01/2005US6959637 Vacuum brake booster
10/2005
10/27/2005US20050237021 Rotatingly driving device of construction machinery
10/27/2005DE19726821B4 Verfahren und Vorrichtung zur Steuerung eines Werkzeuges einer Arbeitsmaschine Method and apparatus for controlling a machine tool of a working
10/26/2005EP1588058A2 Control unit for a pneumatic actuator operating a roof smoke extractor flap
10/19/2005CN2734625Y Aviation ground facility hydrostatic open bridge driven walking system
10/19/2005CN2734624Y Aviation ground facility hydrostatic open wheel edge driven walking system
10/18/2005US6955113 Electro-hydraulic actuator with mechanical servo position feedback
10/18/2005US6955044 Reaction arrangement for brake booster
10/13/2005WO2005028166A8 Device and method for controlling elastic-body actuator
10/11/2005US6954683 Method and apparatus for performing diagnostics in a control loop of a control valve
10/06/2005US20050217475 Air servo cylinder apparatus and controlling method therefor
10/05/2005CN1676950A Air servo cylinder apparatus and controlling method therefor
10/04/2005US6951163 Shaft coupling and shifting mechanism for pneumatic pump
09/2005
09/22/2005DE10356971B4 Schaltung zum Regeln der Speisungsmenge einer hydraulischen Pumpe Circuit for controlling the supply amount of a hydraulic pump
09/20/2005US6945040 Ram moving method for hydraulic machine, ram movement controller, method for preventing trapping of axial plunger pump used for the machine, and the pump
09/15/2005US20050200195 Hydraulic device
09/15/2005US20050199119 Shaft coupling and shifting mechanism for pneumatic pump
09/14/2005CN2725598Y High performance electrohydraulic servo controller
09/13/2005US6941783 Double action oil hydraulic press
09/01/2005DE102004007956A1 Method for controlling hydraulic solenoid valves with compensating signal added to solenoid control signal to compensate for inertial delay
08/2005
08/23/2005CA2435225C Method and apparatus for multiple-input-multiple-output of a valve/actuator plant
08/17/2005CN1215265C Ball socket joint for servo piston driving for cambered axle type hydraulic equipment
08/16/2005US6928917 Control valve
08/11/2005WO2005073565A1 Hydraulic actuator control valve
08/11/2005CA2553138A1 Hydraulic actuator control valve
08/10/2005CN1653680A Rotatingly driving device of construction machinery
08/09/2005US6925807 Actuator control system for hydraulic devices
08/03/2005CN1650158A Servo-controlled integral stop for use with a servo-controlled hydraulic piston
08/03/2005CN1650109A Method and apparatus for performing diagnostics in a control loop of a control valve
08/03/2005CN1648466A Worm wheel motor of pneumatic tool
07/2005
07/28/2005US20050163639 Hydraulic actuator control valve
07/27/2005CN1212481C Single piece type proportion controller
07/26/2005US6920821 Device and method for controlling stop of hydraulic press and device and method for detecting trouble of speed selector valve
07/14/2005DE10327371B4 Positionssteuerungsvorrichtung für einen elektro-fluidtechnischen Antrieb und Verfahren zur Positionssteuerung Position control device for an electro-fluidic drive and method for controlling the position
07/13/2005EP1553308A1 Electrohydraulic actuation system
07/07/2005WO2005061905A1 Method and device for switching hydraulic fluid supplies, such as for a hydraulic pump/motor
07/07/2005CA2546792A1 Method and device for switching hydraulic fluid supplies, such as for a hydraulic pump/motor
07/06/2005EP1549857A1 Regulating device for a hydraulic system
06/2005
06/30/2005US20050138924 Hydraulic drive apparatus
06/09/2005US20050120873 Method and device for switching hydraulic fluid supplies, such as for a hydraulic pump/motor
05/2005
05/18/2005EP1383616B1 Controller for an unbalanced mass adjusting unit of a soil compacting device
05/18/2005CN1202360C Multi-path synchronous hydraulic servo driving device
05/06/2005WO2004011812A3 Actuator control system for hydraulic devices
05/05/2005US20050095069 Method for use in offshore load transfer and floater and hydraulic device for the same
04/2005
04/27/2005CN2695705Y Feedback mechanism and valve positioner
04/20/2005CN2693408Y Fixed delivery pump frequency changing type hydraulic speed regulating arrangement
04/06/2005CN1604994A Actuator cylinder
03/2005
03/31/2005WO2005028166A1 Device and method for controlling elastic-body actuator
03/17/2005DE10338551B3 Hydraulisches Antriebssystem für Dächer von Fahrzeugen A hydraulic drive system for vehicle roofs
03/15/2005US6868305 Intelligent hydraulic manifold used in an injection molding machine
03/09/2005EP1511985A1 Servo-controlled integral stop for use with a servo-controlled hydraulic piston
03/03/2005WO2005018972A1 Hydraulic drive system used for the covers of vehicle openings
03/02/2005CN2682236Y Liquid controlling device for electric control hydraulic actuator
03/02/2005CN2682233Y Electric control hydraulic actuating unit with a cryptomorphic switch
02/2005
02/24/2005US20050039807 Electric fluid servo valve and method of making same
02/24/2005DE10013194B4 Antriebsvorrichtung Driving device
02/23/2005EP1508731A1 Electric fluid servo valve and method of making same
02/09/2005EP1505717A1 Rotatingly driving device of construction machinery
02/02/2005EP1502031A1 Method and apparatus for performing diagnostics in a control loop of a control valve
02/02/2005CN1573175A Method and apparatus for controlling a solenoid valve of an automatic transmission of a vehicle
02/02/2005CN1573133A Circuit for controlling discharge amount of hydraulic pump
01/2005
01/27/2005DE10356971A1 Schaltung zum Regeln der Speisungsmenge einer hydraulischen Pumpe Circuit for controlling the supply amount of a hydraulic pump
01/13/2005DE10327371A1 Positioning control device for electro-fluidic drive with power pick-off device, includes fluidic actuator and electric actuator for driving power-pick-off device
01/06/2005US20050000351 Control method
01/06/2005US20050000350 Actuator cylinder
01/05/2005DE10361668A1 Verfahren und Vorrichtung zum Steuern des Solenoidventils eines Automatikgetriebes eines Kraftfahrzeugs Method and apparatus for controlling the solenoid valve of an automatic transmission of a motor vehicle
01/04/2005US6837054 Actuator assembly with synchronized hydraulic actuators
12/2004
12/30/2004US20040261608 Multi-valve fluid operated cylinder positioning system
12/23/2004US20040258537 Circuit for controlling discharge amount of hydraulic pump
12/16/2004US20040254706 Method and apparatus for controlling a solenoid valve of an automatic transmission of a vehicle
12/07/2004US6826998 Electro Hydraulic servo valve
12/02/2004DE10311156B3 Fahrzeug mit einer Anbaueinrichtung Vehicle having an attachment device
12/02/2004DE10049958B4 Fluidtechnische Anordnung sowie Ventilanordnung und Aktuator hierfür Fluidic assembly and valve assembly and actuator therefor
12/01/2004EP1325237B1 Arrangement using fluid technology and valve arrangement and actuator for the same
11/2004
11/24/2004EP1478568A1 Method for use in offshore load transfer, and a floater and hydraulic device for the same
11/16/2004US6817277 Device for controlling hydraulic pressure of construction machine
11/11/2004WO2004065798A8 Accurate fluid operated cylinder positioning system
11/04/2004DE102004012294A1 Hochgeschwindigkeitsantriebsverfahren und -system für Druckzylinder High-speed driving method and system for printing cylinder
11/03/2004EP1472461A1 Spool valve
11/03/2004CN2653192Y Buffer valve capable of sufficiently regulating liquid pressure
10/2004
10/27/2004EP1470336A2 Actuator cylinder
10/21/2004WO2004090340A1 Multi-valve fluid operated cylinder positioning system
10/14/2004WO2004066043A3 Control unit for a pneumatic actuator operating a roof smoke extractor flap
10/14/2004US20040200349 Accurate fluid operated cylinder positioning system
10/12/2004US6802242 Pneumatic circuit control system
10/07/2004WO2004085855A1 Hydraulic device
10/05/2004US6799501 High speed driving method and apparatus of pressure cylinder
09/2004
09/30/2004US20040193327 Servo-valve control device and servo-valve control system with abnormality detection
09/30/2004DE10314302B3 Hydraulische Antriebsvorrichtung, Verfahren zum Betreiben einer hydraulischen Antriebsvorrichtung A hydraulic drive apparatus, method for operating a hydraulic drive device
09/29/2004EP1462660A1 Hydraulic actuator, method for operating a hydraulic actuator and controller therefor
09/23/2004US20040182231 High-speed driving method and system of pressure cylinder
09/23/2004US20040182074 Pneumatic circuit control system
09/22/2004CN1167886C Electro-hydraulic servo control element/assembly
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