| 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) |
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| 09/16/2004 | US20040177977 Vehicle with an attachment |
| 09/14/2004 | US6790110 Marine power steering system |
| 09/14/2004 | US6789457 Gas pressure actuator capable of stably driving and controlling its slider, and method for controlling the gas pressure actuator |
| 09/08/2004 | CN1165688C Cylinder locating controller |
| 08/31/2004 | US6783430 Grinding apparatus using fluid servomotor |
| 08/26/2004 | US20040163894 Method and apparatus for synchronizing a vehicle lift |
| 08/19/2004 | WO2004068932A1 Assembly and method for controlling the lifting gear of an agricultural utility vehicle |
| 08/17/2004 | US6776389 Feedback mechanism and valve positioner |
| 08/17/2004 | US6775974 Velocity based method of controlling an electrohydraulic proportional control valve |
| 08/11/2004 | CN1519480A Servo valve controller with abnormal detection sunction and servo valve control system |
| 08/10/2004 | US6772671 Electrohydraulic motor and hydraulic driving method |
| 08/05/2004 | WO2004066043A2 Control unit for a pneumatic actuator operating a roof smoke extractor flap |
| 08/05/2004 | WO2004065798A1 Accurate fluid operated cylinder positioning system |
| 08/05/2004 | DE102004001487A1 Servo-Ventilsteuereinrichtung und Servo-Ventilsteuersystem mit Abnormalitätserfassung Servo-valve control means and servo valve control system abnormality detection |
| 07/28/2004 | CN1515401A Injection-moulding machine and device for controlling hydraulic actuator |
| 07/28/2004 | CN1515400A Method for controlling hydraulic actuator and its microcontroller |
| 07/28/2004 | CN1515399A Control device of hydraulic actuator in injection-moulding machine |
| 07/20/2004 | US6763916 Method and apparatus for synchronizing a vehicle lift |
| 07/15/2004 | DE19728850B4 Verfahren und Vorrichtung zur Betätigung einer fluidisch betriebenen Stellvorrichtung Method and apparatus for actuating a fluid-operated actuating device |
| 07/15/2004 | DE10260138A1 Programmierbarer Linearantrieb, insbesondere für eine Schweißzange sowie Verfahren zur Ansteuerung des Linearantriebs Programmable linear drive, in particular for a welding gun and to methods for controlling the linear drive |
| 07/14/2004 | CN1512078A Hydraulic system of bending machine |
| 07/14/2004 | CN1157266C Gear quantitative cold precision extrusion working method |
| 06/30/2004 | EP1432913A2 Shaft coupling and shifting mechanism for pneumatic pump |
| 06/24/2004 | US20040122536 Precision positioning device and processing machine using the same |
| 06/23/2004 | EP1431587A2 Drive device for a valve |
| 06/23/2004 | EP1430985A1 Welding gun comprising a programmable linear drive with two independent controlling circuits and process for driving the linear drive such a welding gun |
| 06/22/2004 | US6751954 Compact hybrid actuator |
| 06/16/2004 | EP0879361B1 Power steering system with a variable bias between valve elements |
| 06/01/2004 | US6742440 Servo-controlled integral stop for use with a servo-controlled hydraulic piston |
| 05/27/2004 | WO2004044436A1 Electro-hydraulic actuator with mechanical servo position feedback |
| 05/26/2004 | CN1499086A Cock fittings system for navigation tool |
| 05/26/2004 | CN1499085A Controller of integrated electric hydraulic brake |
| 05/20/2004 | US20040094048 Double action oil hydraulic press |
| 05/20/2004 | US20040094029 Pneumatic actuator circuit |
| 05/19/2004 | EP1420170A1 Device for controlling hydraulic pressure of construction machine |
| 05/19/2004 | EP1420169A2 Double-acting hydraulic press |
| 05/19/2004 | EP1419421A2 Control method |
| 05/13/2004 | US20040089144 Electro-hydraulic actuator with mechanical servo position feedback |
| 05/12/2004 | EP1418343A1 Control means for an integrated electrohydraulic actuator |
| 05/12/2004 | EP1418342A1 Vessel comprising a valve system |
| 05/12/2004 | CN2615403Y Hydraulic rotary device |
| 05/11/2004 | US6732629 Pneumatic actuator circuit |
| 04/28/2004 | EP1414059A2 Precision positioning device and processing machine using the same |
| 04/28/2004 | CN1492166A Force increasing device of gearbox |
| 04/15/2004 | WO2004031593A1 Regulating device for a hydraulic system |
| 04/15/2004 | US20040069497 Actuator control system for hydraulic devices |
| 04/07/2004 | CN1488040A Method and apparatus for multiple-input-multiple-output of a valve/actuator plant |
| 04/01/2004 | US20040060205 Device for controlling hydraulic pressure of construction machine |
| 04/01/2004 | DE10304377B3 Control device for front lifting tool of agricultural vehicle, has position sensor coupled via electronic unit to driver-operated buttons and tool operating lever coupled to hydraulic unit and electronic unit |
| 03/31/2004 | EP1403524A2 Velocity-based method for controlling an electrohydraulic proportional control valve |
| 03/25/2004 | WO2004025127A1 Hydraulic device |
| 03/25/2004 | US20040055453 Velocity based method of controlling an electrohydraulic proportional control valve |
| 03/18/2004 | US20040050244 Gas pressure actuator capable of stably driving and controlling its slider, and method for controlling the gas pressure actuator |
| 03/16/2004 | US6705199 Precision servo control system for a pneumatic actuator |
| 03/04/2004 | WO2003086942A3 Method and apparatus for synchronizing a vehicle lift |
| 03/04/2004 | WO2003029659A3 Main piston servo control system which is fitted with an automatic fault containment system |
| 02/26/2004 | US20040039488 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 02/11/2004 | EP1388768A2 Fluid drive for linearly sliding parts, with programmable electronic cams |
| 02/05/2004 | WO2004011812A2 Actuator control system for hydraulic devices |
| 02/04/2004 | CN2601767Y Hollow, oil pressure revolving cylinder |
| 01/28/2004 | EP1383616A1 Controller for an unbalanced mass adjusting unit of a soil compacting device |
| 01/22/2004 | WO2004007973A1 Electrohydraulic actuation system |
| 01/22/2004 | US20040012365 Multi-axis air/electrical control system |
| 01/22/2004 | US20040011194 Arrangement using fluid technology and valve arrangement and actuator for the same |
| 01/22/2004 | DE10235982B3 Antrieb für linear bewegbare Bauteile einer Werkzeugmaschine Drive for linearly movable parts of a machine tool |
| 01/21/2004 | CN2600205Y Dual-speed hydraulic broaching machine |
| 01/21/2004 | CN1469034A Analog control circuit for fan driving and controlling method thereof |
| 01/15/2004 | WO2004005728A1 Electro hydraulic servo valve |
| 01/13/2004 | US6678584 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 01/08/2004 | US20040003710 Electro hydraulic servo valve |
| 01/07/2004 | CN1134023C Actuator structure specially used for controlling alone electricity generation equipment |
| 12/09/2003 | US6658747 Position sensor for a hydraulic actuator and hydraulic system using the same |
| 12/04/2003 | WO2003100385A1 Servo-controlled integral stop for use with a servo-controlled hydraulic piston |
| 12/04/2003 | DE10259471C1 Pneumatic drive device for tap uses pressurized air turbine or motor coupled to switching shaft for tap projecting from tap housing |
| 12/03/2003 | EP1366300A2 Method and apparatus for multiple-input-multiple-output of a valve/actuator plant |
| 12/02/2003 | US6655404 Actuator control device |
| 11/27/2003 | US20030217639 Servo-controlled integral stop for use with a servo-controlled hydraulic piston |
| 11/26/2003 | CN1458425A Multi-path synchronous hydraulic servo driving device |
| 11/25/2003 | US6651574 Spool valve |
| 11/20/2003 | WO2003096522A1 Rotatingly driving device of construction machinery |
| 11/20/2003 | WO2003019302A3 Hybrid control system |
| 11/13/2003 | WO2003093681A1 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 11/13/2003 | CA2692577A1 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 11/13/2003 | CA2692574A1 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 11/11/2003 | US6644332 Method and apparatus for multiple-input-multiple-output control of a valve/actuator plant |
| 11/06/2003 | WO2003058095A3 Actuator cylinder |
| 11/06/2003 | US20030208305 Method and apparatus for performing diagnostics in a control loop of a control valve |
| 11/04/2003 | US6640685 Closed loop electrohydraulic actuator control circuit |
| 10/29/2003 | CN1451888A Electric controlled hydraulic actuator with force feedback position detection |
| 10/28/2003 | US6637461 Electrically operated hydraulic actuator with force feedback position sensing |
| 10/23/2003 | WO2003086942A2 Method and apparatus for synchronizing a vehicle lift |
| 10/22/2003 | EP1354140A1 Fluid-activated adjustment and manoeuvre device |
| 10/16/2003 | US20030192744 Method and apparatus for synchronizing a vehicle lift |
| 10/15/2003 | CN1124418C Hydraulic servo device |
| 10/09/2003 | WO2003083314A1 Pneumatic drive with jet engine, for stop and control devices |
| 10/08/2003 | EP1350959A1 Pneumatic drive, jet engine (variants) and electropneumatic control device |
| 10/08/2003 | CN2578587Y Hydraulic regulator |
| 10/02/2003 | US20030186600 Marine power steering system |
| 10/01/2003 | EP1105235B1 Device for hydraulically adjusting the rollers of strand guiding segments of a continuous casting installation |
| 10/01/2003 | CN1122954C Method and device for transmitting control and/or sensor signals |