Patents
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)
10/1979
10/03/1979EP0004354A1 Hydraulic positioning device with a feedback arrangement
09/1979
09/18/1979US4167893 Load sensing valve
08/1979
08/14/1979US4164167 Hydraulic servomechanism
08/14/1979CA1060331A1 Hydraulic suspension seat assembly
07/1979
07/31/1979CA1059440A1 Controller for fluid pressure operated devices
07/24/1979US4161905 Hydraulic servomechanism
05/1979
05/22/1979US4155288 Control system for a fluid pressure operated actuator arrangement
05/08/1979US4152971 Fluidic repeater
02/1979
02/06/1979US4137825 Fluidic repeater
01/1979
01/09/1979US4133250 Combined feedback control system
01/09/1979CA1045980A1 Fluidic repeater
01/02/1979US4132152 Closed loop electro-fluidic control system
12/1978
12/26/1978CA1044992A1 Variable feedback steering system
12/19/1978CA1044564A1 Remote control system controlled by a fluid pressure
12/05/1978US4128044 Method of controlling apparatus and servoactuator therefor
10/1978
10/10/1978CA1040023A1 Pneumatic function generator assembly
09/1978
09/26/1978US4116112 Fluidic amplifier
08/1978
08/29/1978CA1037356A1 Controller for fluid pressure operated devices
08/22/1978CA1036903A1 Fluid pressure servocylinder
08/15/1978US4106390 Pneumatic linear actuator
06/1978
06/13/1978US4094229 Fluidic repeater
05/1978
05/30/1978US4091716 Fluidic servo-system and method
05/23/1978US4090429 Fail-safe fluid control valve
05/16/1978US4089252 Proportional force amplifier
03/1978
03/28/1978US4080873 Servoactuator
02/1978
02/28/1978US4075930 Pneumatic actuator system and method
01/1978
01/24/1978US4069746 Control arrangement for a hydraulic power transmission
01/03/1978US4066002 Fluid pressure operated rotary stepper actuator
10/1977
10/04/1977US4051766 Arrangement for steering-power limitation in hydraulic servo-steering systems
10/04/1977US4051765 Electric-hydraulic pulse motor having an improved rotary guide valve means
09/1977
09/27/1977US4050247 Control valve for variable displacement pump or motor
09/06/1977US4046059 Fluidic repeater
08/1977
08/30/1977US4044652 Electrohydraulic proportional actuator apparatus
08/30/1977US4044651 Pneumatic function generator assembly
07/1977
07/05/1977US4033233 Fluid pressure operable servo positioner
06/1977
06/28/1977US4031811 Electro-hydraulic pulse motor
05/1977
05/31/1977US4026194 Remote control system controlled by a fluid pressure
03/1977
03/15/1977US4011891 Proportional flow control valve
02/1977
02/15/1977US4007666 Servoactuator
02/08/1977US4007361 Adaptive control system using position feedback
01/1977
01/18/1977US4003202 Variable feedback steering system
11/1976
11/23/1976US3993418 Fluid-pressure operated actuator with follow-up transmission
11/09/1976US3990668 Hydraulic suspension seat assembly
11/02/1976US3988966 Fluidic repeater
09/1976
09/07/1976US3978879 Control means for hydrostatic steering systems and the like
08/1976
08/31/1976US3977300 Actuator with feedback
08/17/1976US3974715 Null and gain adjustment mechanism for hydrostatic pumps and motors
08/03/1976US3972503 Servo pressure operated piston arrangements
07/1976
07/20/1976US3970165 Power assisted steering system
07/06/1976US3967537 Pressure medium control device
07/06/1976US3967533 Servo valve control apparatus
06/1976
06/08/1976US3961561 Proportional force amplifier
05/1976
05/25/1976US3958492 Electrically compensated electrohydraulic servo system with position related feedback loop
05/18/1976US3956971 Stabilized hydromechanical servo system
05/04/1976US3954149 Hydraulic pressure fluid control system for controlling the displacements of a double-acting servo-motor
05/04/1976US3954045 Rotary actuator valve
04/1976
04/27/1976US3952631 Pressure medium control device
04/13/1976US3949649 Adjusting apparatus for hydraulic pumps or motors
04/13/1976US3949553 Hydraulic step-motor
03/1976
03/16/1976US3943824 Hydraulic system
03/16/1976US3943715 Servo mechanism
02/1976
02/24/1976US3939756 Rotary type hydraulic servo-mechanism
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