Patents for F15B 18 - Parallel arrangements of independent servomotor systems (157)
08/1988
08/11/1988DE3703004A1 Hydraulic servo regulating device for a movable part of an aircraft
07/1988
07/26/1988US4759258 Fluid powered actuator system
02/1988
02/24/1988EP0256649A2 Method and systems for controlling a movable member
02/24/1988EP0256648A2 Hydraulic control system
02/16/1988CA1232826A1 Balanced output hydraulic actuator system
08/1987
08/25/1987US4688469 Fault detector for a triplexed mechanical or hydromechanical system
06/1987
06/09/1987US4671166 Electro-hydraulic actuator systems
04/1987
04/23/1987WO1987002427A1 Fault detector for a triplexed mechanical or hydromechanical system
08/1986
08/26/1986CA1210306A1 Servo actuator control/damping mechanism and method
06/1986
06/24/1986US4596177 Actuator system
04/1986
04/23/1986EP0178819A2 Electro-hydraulic actuator systems
04/15/1986CA1203145A1 Control actuation system including staged direct drive valve with fault control
03/1986
03/25/1986CA1202230A1 Redundant control actuation system-concentric direct drive valve
03/05/1986EP0173463A1 Fluid powered actuator system
02/1986
02/04/1986US4567813 Pressure equalization of multiple valves
12/1985
12/31/1985US4561470 Servo valve control device
12/10/1985CA1197918A1 Multiple loop control system
12/03/1985US4555978 Multiple displacement motor driven power drive unit
12/03/1985US4555974 For use in a fluid servo system
10/1985
10/30/1985EP0159949A1 Control device with servo valves
10/22/1985US4548089 Electro-mechanical direct drive valve servo system with rotary to linear valve drive mechanism
10/08/1985US4545202 Pressure-regulating system
09/1985
09/24/1985US4542679 Multiple loop control system
09/03/1985US4538504 Fail-safe servovalve system
08/1985
08/13/1985US4534273 Control actuation system including staged direct drive valve with fault control
07/1985
07/30/1985US4531448 Balanced output hydraulic actuator system
07/23/1985US4530271 Electric actuator system with hydraulic coupling as protection against mechanical jamming
06/1985
06/04/1985US4521060 For sensing differential movement
04/1985
04/03/1985EP0136005A1 Servo actuator control/damping mechanism
02/1985
02/12/1985CA1182382A1 Electro-mechanical direct drive valve servo system with rotary to linear valve drive mechanism
09/1984
09/25/1984US4472998 Redundant control actuation system-concentric direct drive valve
08/1984
08/21/1984US4466597 Electro-mechanical direct drive valve servo system with rotary to linear valve drive mechanism
08/15/1984EP0115925A1 Control actuation system including staged direct drive valve with fault control
06/1984
06/13/1984EP0110501A1 Redundant control actuation system-concentric direct drive valve
03/1984
03/13/1984US4436018 Multiple loop control system
11/1983
11/02/1983EP0092972A2 Hydraulic control system
09/1983
09/28/1983EP0089745A2 Separate hydraulic systems arranged in parallel, especially for a ship's steering apparatus
06/1983
06/08/1983EP0080888A2 Electro-mechanical direct drive valve servo system with rotary to linear valve drive mechanism
04/1983
04/27/1983EP0016107B1 Steering control system for dual path hydrostatic vehicle
01/1983
01/05/1983EP0068728A1 Servo system
09/1982
09/01/1982EP0058861A1 Multiple loop control system
03/1982
03/18/1982WO1982000862A1 Actuator system for a control surface of an aircraft
07/1981
07/21/1981CA1105391A1 Redundant ehv fault detector
11/1980
11/04/1980US4231284 Load equilization feedback for parallel channel servo actuators
05/1980
05/27/1980US4204457 Device for controlling hydraulic motors
02/1980
02/21/1980WO1980000240A1 Steering control system for dual path hydrostatic vehicle
11/1979
11/27/1979US4175628 Steering control system for dual path hydrostatic vehicle
05/1979
05/22/1979US4155288 Control system for a fluid pressure operated actuator arrangement
03/1979
03/13/1979US4143583 Redundant EHV fault detector
02/1979
02/06/1979US4138088 Device for controlling hydraulic motors
12/1978
12/05/1978US4128047 Actuator with locking valves
09/1978
09/12/1978US4112824 Double-hydraulic actuator
10/1977
10/18/1977US4054154 Self monitoring redundant hydraeric control system
10/04/1977US4051676 Hydraulic valve actuator
11/1976
11/23/1976US3992979 Hydraulic actuating arrangements
10/1976
10/26/1976US3987702 Method and device for electrohydraulic control of a hydraulic actuator
01/1976
01/20/1976US3933176 Fail operative split tandem valve
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