US PATENT CLASS 244
Class Notes
Current as of: June, 1999
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DEFINITION
Classification: 244/
This class contains and is limited to:
1. Machines or structures adapted to be completely or partially sustained by the air (e.g., winged aircraft, helicopters, parachutes, kites, balloons, etc.),
2. Machines or structures adapted to be propelled and guided or stabilized through the air (e.g., projectiles with fins, guided missiles, etc.),
3. Machines or structures adapted to be placed in an orbit or which substantially operate outside the earth's atmosphere (e.g., satellites, space vehicles, etc.),
4. Subcombinations of the machines or structures of 1-3, above, not classified elsewhere (guidance and control, aircraft structures, etc.),
5. Devices ancillary to the use of the machines or structures of 1-3 above, not classified elsewhere (e.g., mooring devices, etc.), and
6. Processes or methods peculiarly related to 1-5 above and not provided for elsewhere.
LINES WITH OTHER CLASSES
This class excludes toy or model aeronautical devices unless the invention is such that it also applies logically to full sized devices for actual use in carrying persons or cargo. For toy or model airplanes, etc., see Class 446, Amusement Devices: Toys, subclass 56.
This class excludes motor vehicles for travel on land or water, and which vehicles are supported above said land or water by a relatively thin cushion of air between the vehicle and the land or water, such cushion of air being generated by the motor vehicle (e.g., ground effect machines). For a motor vehicle of the surface effect type, see Class 180, Motor Vehicles, subclasses 116+.
This class provides, in subclasses 76+, the generic subclass for the automatic steering of mobile craft in two or three dimensions. See subclasses 175+ where the control apparatus includes electrical devices or apparatus. See the search notes to these subclasses for the other subclasses which provide for motion and/or steering control and a statement as to the line between the classes.
Arrangements of aircraft to permit their handling by hoists are found in this class, subclass 1. For similar arrangements on other articles, see Class 220, Receptacles, subclass 1.5+ and Class 294, Handling: Hand and Hoist-Line Implements, subclass 74, and indented subclasses.
Gas cells or balloon envelope distinguished only by the coating on, or by the structure of the fabric or textile are placed in Class 428, Stock Material or Miscellaneous Articles, appropriate subclasses; see especially subclasses 175+, 190, 193, and 196+ for a single or plural layer sheet or web embodying mechanically interengaged strands (e.g., weave or knit), and subclasses 411.1+ for a composite, web or sheet characterized only by the composition of the layers.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS
89, Ordnance,
1.51+, for bomb flare and signal dropping and subclass 37.16 for gun mounts on aircraft.
102, Ammunition and Explosives,
337+, for parachute flares, subclass 387 for parachute-carried drop bombs, subclass 405 for aerial mines, and subclasses 504+ for parachute-containing projectiles.
104, Railways, 23.1, for airplanes attached to or running on tracks.
123, Internal-Combustion Engines,
41.56+, for devices for cooling internal combustion engines by means of air including cowling devices for the engines to
provide for directing the cooling air against the engine parts to be cooled and subclasses 41.63+ for combinations of impellers with driving means are ordinarily classified in Class
414, Material or Article Handling,
227+, for storage and handling means for vehicles.
415, Rotary Kinetic Fluid Motors or Pumps,
8+, for combinations of impellers with driving means.
416, Fluid Reaction Surfaces (i.e., Impellers), appropriate subclasses for impellers such as traction propellers, pusher propellers, helicopter and "Autogiro" rotors as well as these impellers combined with their driving means, whether recited, per se, or in combination with such aircraft structure as is necessary to mount the impellers.
434, Education and Demonstration,
111, 186, and 239+ for devices for training in the use of navigational instruments or for such devices when combined with training devices for aircraft operation, per se.
442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, etc.), 181+, and 304+ for a woven or knit fabric.