US PATENT SUBCLASS 244 / 75 R
AIRCRAFT CONTROL

Current as of: June, 1999
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244 /   HD   AERONAUTICS

75 RAIRCRAFT CONTROL {8}
76 R  DF  .~> Automatic {10}
220  DF  .~> Pilot operated {2}
87  DF  .~> Rudders and empennage {3}
91  DF  .~> Vertical fins
92  DF  .~> Stabilizing propellers
93  DF  .~> Stabilizing weights {2}
96  DF  .~> Airship control {3}
75 A  DF  .~> Flutter prevention

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 244/75

(under the class definition) Devices and arrangements directed to and limited to the controlling of aircraft in flight.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2, through 33, for general arrangement of control systems on aeronautical machines of a particular type.

50+, 110+, for aircraft steering on land or water.

51, for aircraft steering by adjustment of propelling devices.

52, for steering of fluid propelled aircraft by some modification of the fluid propelling devices.

96+, for control systems and devices peculiar to lighter-than-air craft. SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

501.5, for constant tension sustaining devices for flexible cable operators.

91, Motors: Expansible Chamber Type, appropriate subclasses for fluid servo-motors and controls therefor.

102, Ammunition and Explosives,

384, for drop bombs with means for controlling the course of their flight.

114, Ships,

21.1, and 23+ for torpedoes with means to control the steering and/or motion of the torpedo, and subclass 25 for torpedoes with automatic means to keep the torpedo at a predetermined depth below the surface, and subclasses 144+ for miscellaneous devices for controlling the direction and/or speed of a ship.

180, Motor Vehicles,

167+, for a motor vehicle provided with means for controlling its operation which is responsive to electromagnetic radiation, magnetic force, or sound waves received from a source, or reflected from an object or surface, which is located apart from the vehicle; and subclasses 170+ for a motor vehicle provided with means which is responsive to the speed of the vehicle for maintaining its speed at, or preventing it from exceeding, a particular value.

280, Land Vehicles, 263+, and 771+ for miscellaneous steering mechanism for land vehicles.

318, Electricity: Motive Power Systems, appropriate subclasses for electric motor systems. See the Notes to

175+, of Class 244 for the line between this class and Class 318.

364, Electrical Computers and Data Processing Systems,

130+, for generic data processing control systems.

395, Information Processing System Organization,

500.29, for the mathematical simulation of a vehicle.

701, Data Processing: Vehicles, Navigation, and Relative Location,

3+, for computing systems for vehicle control or vehicle condition indication and subclasses 200+ for computations in the application of navigation.