| Patents for F15B 13 - Details of servomotor systems (18,792) |
|---|
| 04/18/1989 | US4821515 Control device for liquid or gaseous medium |
| 04/13/1989 | DE3733517A1 Pressure-influencing device for a hydraulic system having a motor |
| 04/06/1989 | DE3732185A1 Hydraulic valve |
| 04/06/1989 | DE3732175A1 Hydraulic valve |
| 04/05/1989 | EP0310454A2 Compensated individual segment flow regulator |
| 04/05/1989 | EP0310134A2 Hydraulic control system for vehicles used in agriculture and civil engineering |
| 04/05/1989 | EP0309449A1 Metering slot configuration for a valve spool |
| 04/04/1989 | US4817670 Pressure medium control valve |
| 03/29/1989 | CN2035015U 液动单向阀 Hydraulic check valve |
| 03/28/1989 | US4815496 Power feeder for solenoid valves |
| 03/22/1989 | EP0307494A1 Manifold block |
| 03/21/1989 | US4813447 Flow control valve apparatus |
| 03/21/1989 | US4813339 Pulse-width-modulation control of parallel three-way valves to supply single-acting quick-response actuator |
| 03/15/1989 | CN1031748A Hydraulic electromagnetic change-over valve |
| 03/14/1989 | US4811650 Power transmission |
| 03/09/1989 | WO1989002033A1 Load responsive control system adapted to use of negative load pressure in operation of system controls |
| 03/08/1989 | EP0306368A1 Pressure compensator valve for a hydraulic proportional directional valve, and hydraulic directional valve comprising it |
| 03/08/1989 | CN1031584A Valve base with integral flow controls |
| 03/07/1989 | CA1250795A1 Hydraulic control block |
| 03/01/1989 | EP0304911A2 Hydraulic control system |
| 03/01/1989 | EP0304557A2 Direct drive servo valve |
| 02/22/1989 | CN1031270A Hydaulic transmission system |
| 02/16/1989 | DE3741521C1 2/2-way seat valve |
| 02/16/1989 | DE3725906A1 Control valve with positive overlap |
| 02/08/1989 | CN1030971A Valve manifold stacking base |
| 02/07/1989 | US4802505 Fluid control valve |
| 02/07/1989 | US4802403 Return mechanism of an actuating drive |
| 02/01/1989 | EP0301726A1 Spool for a spool valve and method of producing same |
| 02/01/1989 | EP0301007A1 Servovalve drive electronics improvements |
| 01/31/1989 | US4800721 Off)highway vehicle; earthworking/material handling work |
| 01/26/1989 | DE3723673A1 Externally controlled non-return valve |
| 01/26/1989 | DE3723672A1 Non-return valve with an integrated pressure-regulating piston |
| 01/24/1989 | US4799420 Load responsive control system adapted to use of negative load pressure in operation of system controls |
| 01/24/1989 | US4799418 Vacuum actuator for vehicle speed control |
| 01/24/1989 | CA1249202A1 Load sensing circuit of load responsive direction control valve |
| 01/24/1989 | CA1249200A1 Proportional air valve and method of providing proportional air flow |
| 01/18/1989 | EP0299928A2 A priority flow control valve for hydraulic power circuits |
| 01/18/1989 | CN2031045U Governing valve |
| 01/17/1989 | US4798527 Control system for injection molding machine |
| 01/12/1989 | WO1989000248A1 Load sensing circuit of load responsive direction control valve |
| 01/11/1989 | EP0298083A1 Load compensated valve |
| 01/11/1989 | CN1030281A Overflow pump |
| 01/10/1989 | US4796664 Two-axis force motor |
| 01/10/1989 | US4796655 Fluid control devices |
| 01/04/1989 | EP0297682A2 Hydraulic drive system |
| 01/04/1989 | EP0297277A2 Power assistance valve system |
| 01/04/1989 | EP0297106A1 Load sensing circuit and electrohydraulic control for load compensated directional control valve. |
| 01/04/1989 | CN2030271U Internal fitting type automatic relief valve |
| 01/03/1989 | US4794951 Built-in two-way directional control valve |
| 01/03/1989 | US4794941 Torque motor with hydraulic potentiometer for servo-distributor |
| 01/03/1989 | US4794846 Proportional action valve with a biased spring unproportionately variable to the load pressure |
| 01/03/1989 | US4794843 Hydraulic valve for controlling single-acting cylinder |
| 01/03/1989 | US4794842 Valve means for connecting at least one consumer to a hydraulic pressure line |
| 12/28/1988 | EP0296526A2 Valve for hydraulic cylinders and the like |
| 12/28/1988 | CA1247497A Supply control valve with integral pressure limiter |
| 12/27/1988 | US4793377 Direct drive servo valve |
| 12/27/1988 | US4793238 Control signal blocking direction control valve in load-sensing circuit |
| 12/21/1988 | CN87104220A A new type of fluid control mechanism |
| 12/20/1988 | US4791960 Semi-pilot operated four-way valve |
| 12/15/1988 | WO1988009878A1 Adjustment assembly for valve spool and associated centering spring |
| 12/14/1988 | EP0294967A2 Electrically-operable fluid control valve |
| 12/14/1988 | EP0294800A2 Hydraulically piloted valve |
| 12/14/1988 | CN87208982U Diaphragm pneumatic change valve |
| 12/13/1988 | US4790511 Hydraulic apparatus, in particular a 2-way proportional throttle valve |
| 12/13/1988 | CA1246425A1 Post-pressure-compensated unitary hydraulic valve |
| 12/07/1988 | EP0294296A1 Compact slide-valve |
| 12/07/1988 | EP0293646A2 Subassembly consisting of several independently actuable multiple-way valves |
| 12/06/1988 | US4789002 Fluid valve structures |
| 11/29/1988 | US4787415 Valve |
| 11/29/1988 | US4787294 Sectional flow control and load check assembly |
| 11/23/1988 | EP0292457A1 A device in a hydraulic power system connected to a load driving hydraulic motor |
| 11/23/1988 | CN88200801U Displacement digital valve |
| 11/22/1988 | US4785848 Electromagnetic directional control valve assembly |
| 11/22/1988 | US4785839 Pilot valves for two-stage hydraulic devices |
| 11/17/1988 | WO1988008931A1 Load responsive system having synchronizing systems between positive and negative load compensation |
| 11/17/1988 | EP0291140A2 Flow control valve apparatus |
| 11/15/1988 | CA1244744A1 Slide valve |
| 11/09/1988 | EP0289770A2 Directional multiway valve |
| 11/08/1988 | US4782859 Pressurized hydraulic fluid spool valve |
| 11/08/1988 | CA1244316A1 Valve with flow force compensator |
| 11/03/1988 | DE3713824A1 Valve arrangement |
| 11/02/1988 | EP0289337A2 Solenoid valve |
| 11/02/1988 | EP0288594A1 Flow control apparatus |
| 11/02/1988 | EP0113708B1 Dual control input flow control valve |
| 11/02/1988 | EP0085674B1 Load responsive fluid control valve |
| 11/02/1988 | CN88202945U 溢流阀 Relief |
| 11/02/1988 | CN88200016U Hand-operated rotating valve |
| 11/02/1988 | CN87207930U Single-control pneumatic reversal valve |
| 11/02/1988 | CN87202793U Liquid-control one-way valve |
| 10/25/1988 | US4779836 Valve arrangement for controlling a pressure medium flow through a line of pressure medium |
| 10/25/1988 | US4779648 Pilot controlled valves |
| 10/25/1988 | US4779419 Adjustable flow limiting pressure compensated flow control |
| 10/25/1988 | CA1243584A1 Coded fluid control system |
| 10/20/1988 | WO1988008084A1 Axial control valve |
| 10/19/1988 | EP0286683A1 Hydraulic pilot type direction control valve |
| 10/18/1988 | US4777981 Magnetic detent joy stick and stack remote control valves |
| 10/18/1988 | US4777980 Adjustment assembly for valve spool and associated centering spring |
| 10/06/1988 | DE3709504A1 Valve device |
| 10/05/1988 | EP0284831A2 Hydraulic control device for groups of consumers |
| 10/05/1988 | EP0128149B1 Volumetric control device for fluids |