Patents
Sitemap › F15 - Fluid-pressure actuators; Hydraulics or pneumatics in general › F15B - Systems acting by means of fluids in general; Fluid-pressure actuators, e.g. servomotors; Details of fluid-pressure systems, not otherwise provided for › F15B 13 - Details of servomotor systems
Patents for F15B 13 - Details of servomotor systems (18,792)
01/1983
01/05/1983EP0068984A1 Modular pressure fluid distributing system for several actuators
01/05/1983EP0068197A1 Locking apparatus of inertial mass drive hydraulic circuit system
01/04/1983CA1138740A1 Power transmission
12/1982
12/28/1982US4366524 Electromechanical transducer controlling device
12/28/1982US4365647 Power transmission
12/21/1982USRE31107 Feedback shaft extending between swashplate and displacement control valve
12/21/1982US4364304 Arrangement for influencing the operating quantity of a servomotor
12/15/1982EP0066717A2 Hydraulic control system comprising a meter-in valve means
12/08/1982EP0066151A2 Hydraulic control system comprising a pilot operated check valve
12/08/1982EP0066150A2 Variable gain servo controlled directional valve
12/07/1982US4362182 Nozzle force feedback for pilot stage flapper
12/07/1982US4362089 Valve system
12/07/1982US4362087 Fully compensated fluid control valve
12/07/1982US4362018 Hydraulic rotation control circuit
12/07/1982US4361941 Valve and wire cutting, skinning and wrapping tool employing the valve
12/07/1982CA1136955A1 Deformable plug
11/1982
11/30/1982US4361169 Pressure compensated control valves
11/30/1982US4361075 Unlockable check valve, particularly for use as recovery and setting valve in underground mining
11/30/1982CA1136516A1 Servo-valve
11/30/1982CA1136485A1 Feedback shaft extending between swashplate and displacement control valve
11/23/1982US4359866 Rotatable controller system
11/23/1982CA1136022A1 Controls for actuating a direction control valve to and releasing it from a float-effecting condition
11/17/1982EP0064497A1 Load responsive flow control valve
11/16/1982US4359064 Fluid power control apparatus
11/16/1982CA1135593A1 Selectively actuatable fluid control for a work implement
11/10/1982EP0064332A1 A fluid control valve and a fluid control system
11/09/1982US4357955 Electrohydraulic control arrangement
11/09/1982CA1135151A1 Programmed valve system used for positioning control
11/02/1982US4356842 Control valve set for a completely pneumatical low- and operation pressure control
11/02/1982US4356841 Matrix switching control of subsea production systems
11/02/1982US4356840 Digital fluid flow control system
11/02/1982US4356835 Hydraulic control valve for selectively supplying fluid to hydraulic services
11/02/1982US4356760 Ram locking device
11/02/1982CA1134711A1 Flow control valve
10/1982
10/28/1982WO1982003663A1 Hydraulic load lifting system with hydraulic surcharge to make up valve pilot lines
10/26/1982USRE31067 Hydrostatic control unit
10/26/1982US4355660 Pneumatically controlled, four position hydraulic valve
10/26/1982US4355655 Hydraulic control apparatus for load independent flow regulation
10/26/1982US4355506 Pump-motor power limiter and pressure relief
10/26/1982US4355505 Rotatable controller valve
10/26/1982CA1134240A1 Reverse differential holding valve
10/20/1982EP0063025A1 Hydraulic control circuit for an hydraulic ram
10/20/1982EP0062705A1 Regulating device for feeding and draining oil under pressure in oleodynamic jacks actuating the articulated arms of machines
10/19/1982US4354527 Control system for pilot operated valve
10/19/1982CA1133794A1 Pressure flow compensated hydraulic priority system providing signals controlling priority valve
10/14/1982WO1982003436A1 Method for balancing flowing forces in a plane slide and plane slide operating according to this method
10/14/1982WO1982003432A1 Fully compensated fluid control valve
10/12/1982US4353289 Power transmission
10/12/1982US4353286 Hydraulic control system with a pipeline antiburst safety device for a double acting drive cylinder
10/12/1982CA1133359A1 Lock with variable length piston and hydraulic system for a work implement using the same
10/12/1982CA1133355A1 Two stage pneumatic servo valve
10/06/1982EP0061842A1 Directional valve with spool transfer loop
10/05/1982US4352375 Control valves
09/1982
09/28/1982US4351226 Fluid control system
09/28/1982CA1132433A1 Mechanical detent for three speed power shift transmission
09/14/1982US4348945 Device for controlling a hydraulic power circuit
09/14/1982US4348942 Pressure-medium connection between a valve block and a load which has at least one double-acting pressure-medium motor
09/14/1982CA1131544A1 Overrunning load control for hydraulic motors
09/14/1982CA1131541A1 Variable flow rate control with mechanical override for closed center valve
09/07/1982US4347864 Auxiliary control device for pneumatic distributor
09/03/1982EP0050656A4 Integral hydraulic blocking and relief valve.
08/1982
08/31/1982US4346733 Control valve
08/24/1982CA1130169A1 Fluid supply system
08/24/1982CA1130167A1 Power transmission
08/18/1982EP0057969A1 Pilot valves
08/17/1982US4344451 Pressure responsive distributing valve device
08/17/1982US4344355 Control arrangement for a hydraulically operated implement
08/10/1982US4343224 Automatic control system
08/10/1982US4343152 Load sensing porting arrangement
08/10/1982CA1129528A1 Electrically controlled proportional valve
08/03/1982US4342335 Hydraulic valve detent mechanism
08/03/1982US4342256 Control device for a hydraulic motor
07/1982
07/28/1982EP0056369A1 Pressure reducing valve for dead engine lowering.
07/27/1982US4341243 Pressure reducing valve with floating stem for make-up vent
07/27/1982US4341149 Selectively actuatable fluid control system for a work element
07/27/1982US4341148 Hydraulic sequencing valve
07/21/1982EP0056024A1 Pressure reducing valve with floating stem for make-up vent.
07/20/1982US4340087 Power transmission
07/20/1982US4340086 Hydraulic control valve unit
07/20/1982US4339987 Pressure detent mechanism
07/13/1982US4338962 Control and relief valves
07/13/1982US4338856 Dual pilot counterbalance valve
07/08/1982WO1982002236A1 Pulse width modulated constant current servo driver
07/08/1982WO1982002229A1 Control for dead engine lower
07/06/1982US4337798 Converter for valves
06/1982
06/24/1982WO1982002020A1 Method for making a distribution block for a liquid or gaseous medium
06/22/1982US4335745 Hydraulic distributor, especially for servo-control systems of aircraft and helicopters
06/22/1982US4335645 Fluidic repeater
06/16/1982EP0053608A1 Valve system.
06/15/1982US4334441 Gearshift timing control arrangement for automatic power transmission
06/15/1982CA1125626A1 Closed center draft control valve
06/08/1982US4333498 Stepper motor actuated servovalve
06/08/1982US4333390 Balanced pivoted vane valve
06/08/1982US4333387 Anti-jam hydraulic servo valve
06/08/1982CA1125145A1 Power transmission
06/08/1982CA1125142A1 Directional control valve with flow path through valve spool
06/08/1982CA1125141A1 Pilot operated pilot valve
06/08/1982CA1125140A1 Pressure regulating valve
06/02/1982EP0052709A1 Distributing valve
05/1982
05/27/1982WO1982001748A1 Load responsive flow control valve
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