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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10/25/1983 | CA1155729A1 Hydrostatic control device, particularly a steering device |
10/18/1983 | US4410049 Directional valve means for positioning machine units |
10/12/1983 | EP0091018A1 Position control for a double acting hydraulic motor |
10/05/1983 | EP0090129A2 Fluid flow control apparatus |
09/21/1983 | EP0088915A1 Hydraulic control device for actuating the lifting device of an agricultural vehicle |
09/20/1983 | US4404897 Fluidic repeater |
09/07/1983 | EP0088017A2 Hydraulic directional spool valve |
08/23/1983 | US4399734 Power assist device for control system |
08/16/1983 | CA1152194A1 Controller system for rotary actuator |
08/03/1983 | EP0084835A2 Power transmission |
08/02/1983 | US4396033 Flow volume control device for a power assisted steering device |
07/27/1983 | EP0084501A1 Distributor for a hydraulic servomechanism |
06/15/1983 | EP0081374A1 Pulse width modulated control circuit for double solenoid valve |
06/07/1983 | US4386553 Control system for doser actuator |
06/01/1983 | EP0079907A1 Shearing tool. |
05/17/1983 | CA1146446A1 Negative rate compensated hydraulic servo system |
04/20/1983 | EP0076965A1 Control device for a pressure actuator |
03/30/1983 | EP0075507A1 Electrohydraulic servo valve device |
03/23/1983 | EP0074922A2 Device for limiting the turning angle of screw gearings, and application of the same |
03/23/1983 | EP0074581A1 Device for regulating a hub or an angular displacement independently of the load and proportionally to an input signal |
03/09/1983 | EP0073268A1 Electro-hydraulic control of an actuator piston |
03/08/1983 | US4375780 Fail-fixed electrohydraulic servosystem |
02/23/1983 | EP0072665A2 Pneumatic control system for machines |
02/22/1983 | US4374485 Single annular membrane type of pneumatic positioner |
02/15/1983 | US4373424 Hydraulic booster |
02/15/1983 | CA1141262A1 Hydraulic servo steering system |
02/09/1983 | EP0070973A1 Servo control valve, in particular for a hydraulic servocontrolled airplane |
02/09/1983 | EP0070957A1 Method and device to simulate a definite time-dependent motion with a servo-hydraulic device |
01/25/1983 | US4369693 Electrohydraulic servomechanism |
01/11/1983 | US4367803 Steering system |
01/04/1983 | US4366743 Control system for doser actuator |
01/04/1983 | US4366742 Hydraulic force multiplying device |
12/21/1982 | US4364302 Hydraulic control apparatus for a servo-motor, particularly for vehicle steering |
12/09/1982 | WO1982004292A1 Semi-rotary fluid actuator |
11/25/1982 | EP0047241A4 Hydraulic servo steering system. |
11/23/1982 | US4359929 Negative rate compensated hydraulic servo system |
11/09/1982 | CA1135382A1 Electronic compensator for a pneumatic servo controlled load bearing bellows system |
10/26/1982 | US4355506 Pump-motor power limiter and pressure relief |
10/19/1982 | CA1133793A1 Duel cylinder linear servo motor |
10/12/1982 | CA1133355A1 Two stage pneumatic servo valve |
10/06/1982 | EP0061759A1 Control system for hydraulic circuit means including a variable displacement pump and actuator means |
10/05/1982 | US4352299 Intermittent motion gear apparatus |
09/28/1982 | US4351226 Fluid control system |
09/22/1982 | EP0060704A2 A steering system |
08/31/1982 | CA1130664A1 Fluidic motor actuator |
07/07/1982 | EP0055351A1 Electrohydraulic position drive for turbine valves |
06/22/1982 | US4335645 Fluidic repeater |
06/08/1982 | US4333390 Balanced pivoted vane valve |
05/05/1982 | EP0051014A1 Device for continuously controlling the stroke of a piston of an actuator |
05/05/1982 | EP0051003A2 Control system for an electrohydraulic actuator |
04/27/1982 | US4326448 Electronic regulation procedures using a servomotor |
04/21/1982 | EP0049714A1 Electro-magnetically controlled servomotor with follow-up action |
03/30/1982 | CA1120826A1 Control valve for working machine |
03/18/1982 | WO1982000862A1 Actuator system for a control surface of an aircraft |
03/17/1982 | EP0047241A1 Hydraulic servo steering system. |
03/09/1982 | CA1119389A1 Separable slide fastener |
01/20/1982 | EP0044263A1 Quick response flow-current converter, especially to control actuation or distribution devices |
12/08/1981 | US4304171 Power boost mechanism |
11/18/1981 | EP0040075A1 Hydraulic actuator |
11/11/1981 | EP0039550A2 A control arrangement for producing motion |
09/17/1981 | WO1981002553A1 Hydraulic servo steering system |
09/01/1981 | US4286684 Hydraulic servo steering system |
08/25/1981 | US4285267 Control device for hydraulic servomechanisms |
08/25/1981 | CA1107606A1 Pumps |
08/18/1981 | US4283990 Fluidic repeater |
08/12/1981 | EP0033669A1 Servocontrol and its use in flight control devices of aircraft |
08/06/1981 | WO1981002185A1 Electrohydraulic set device |
08/04/1981 | US4282467 Controller system for rotary actuator |
07/21/1981 | US4280083 Apparatus for limiting acceleration in a servosystem |
07/21/1981 | US4279192 Electronic compensator for a pneumatic servo controlled load bearing bellows system |
06/16/1981 | CA1103115A1 Directional valve means for positioning machine units |
05/26/1981 | US4269111 Hydraulic apparatus |
05/19/1981 | CA1101524A1 Combined feedback control system |
05/05/1981 | US4265331 Fluidic repeater |
05/05/1981 | US4265004 Separable slide fastener |
04/02/1981 | WO1981000893A1 Bidirectional,multiple speed hydraulic actuator |
03/10/1981 | US4254689 Fluidic repeater |
03/05/1981 | WO1981000601A1 Electronic compensator for a pneumatic servo controlled load bearing bellows system |
02/10/1981 | US4249455 Hydraulic servo-mechanism |
02/10/1981 | US4249453 Fluidic motor actuator |
01/20/1981 | US4245547 Rotary to linear servo mechanisms |
01/06/1981 | US4242942 Hydraulic positioner with feedback device |
12/09/1980 | CA1091131A1 Control device for steering apparatus or the like |
12/02/1980 | US4236442 Digitally compatible servomotor |
11/11/1980 | CA1089330A1 Rotary to linear servo mechanisms |
11/04/1980 | US4231284 Load equilization feedback for parallel channel servo actuators |
10/14/1980 | US4227441 Hydraulic servo-motor for a regulating valve having a hydraulic closing mechanism |
10/14/1980 | US4227440 Fluidic repeater |
09/09/1980 | CA1085493A1 Adaptive control system using position feedback |
09/02/1980 | US4220073 Control valve for working machines |
08/12/1980 | US4216701 Swing type hydraulic servo-actuator |
07/15/1980 | US4212229 Controller for fluid pressure operated devices |
06/03/1980 | US4205590 Positive feedback mechanism for servocontroller of fluid operated actuator |
06/03/1980 | CA1078943A1 Closed loop electro-fluidic control system |
05/14/1980 | EP0011036A2 Control device for hydraulic mechanisms |
05/13/1980 | US4202247 Closed loop electro-fluidic control system |
05/06/1980 | CA1076926A1 Pump jack device |
02/19/1980 | CA1071973A1 Device for turning a machine unit past a dead center |
12/11/1979 | US4177713 Electrohydraulic proportional actuator apparatus |
11/27/1979 | CA1066989A1 Control system for the main hydraulic cylinder of metal sawing machine |