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Class Information
Number: 244/227
Name: Aeronautics > Aircraft control > Pilot operated > Control system > Fluid > With electric control
Description: Apparatus wherein electric control circuitry is utilized for the regulation of the fluid power device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7600715 |
Local backup hydraulic actuator for aircraft control systems |
Oct. 13, 2009 |
| 7007897 |
Flight control actuation system |
Mar. 7, 2006 |
| 6827311 |
Flight control actuation system |
Dec. 7, 2004 |
| 6772054 |
Device for operating a controlled member on a rotary-wing aircraft, particularly a helicopter |
Aug. 3, 2004 |
| 6675076 |
System, autopilot supplement assembly and method for increasing autopilot control authority |
Jan. 6, 2004 |
| 6505115 |
Device for controlling a system for monitoring the environment of an aircraft, in particular of a transport aircraft |
Jan. 7, 2003 |
| 6325333 |
Aircraft pitch-axis stability and command augmentation system |
Dec. 4, 2001 |
| 6241182 |
Hybrid control system for an aircraft aerodynamic surface |
Jun. 5, 2001 |
| 6206329 |
Process and device for the control of the rudder of an aircraft |
Mar. 27, 2001 |
| 5908177 |
Flight control system |
Jun. 1, 1999 |
| 5806805 |
Fault tolerant actuation system for flight control actuators |
Sep. 15, 1998 |
| 5791596 |
Process and device for the control of the rudder of an aircraft |
Aug. 11, 1998 |
| 5374014 |
System for control of an aerodynamic surface of an aircraft |
Dec. 20, 1994 |
| 5319296 |
Oscillatory servo-valve monitor |
Jun. 7, 1994 |
| 5109672 |
Method and apparatus for cooling and replenishing aircraft hydraulic actuators |
May. 5, 1992 |
| 5082208 |
System and method for controlling an aircraft flight control member |
Jan. 21, 1992 |
| 5033694 |
Attitude control device for air or sea transportation craft |
Jul. 23, 1991 |
| 4863337 |
Control system for working machine having boom |
Sep. 5, 1989 |
| 4800798 |
Control surface dual redundant servomechanism |
Jan. 31, 1989 |
| 4762294 |
Elevator control system especially for an aircraft |
Aug. 9, 1988 |
| 4759515 |
Drive control for a vertical rudder of an aircraft |
Jul. 26, 1988 |
| 4667472 |
Electric integrated actuator with variable gain hydraulic output |
May. 26, 1987 |
| 4580210 |
Control system having variably biased manipulatable unit |
Apr. 1, 1986 |
| 4403756 |
Bifurcated feel simulator for aircraft |
Sep. 13, 1983 |
| 4313165 |
Force feel actuator with limited proportional/integral error feedback |
Jan. 26, 1982 |
| 4150803 |
Two axes controller |
Apr. 24, 1979 |
| 3960348 |
Aerodynamic surface control feel augmentation system |
Jun. 1, 1976 |
| 3949958 |
Pitch control system |
Apr. 13, 1976 |
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