Class   244	AERONAUTICS AND ASTRONAUTICS
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1R

MISCELLANEOUS

1N

. (1 indent ) Noise abatement

1A

. (1 indent ) Lightning arresters and static eliminators

1TD

. (1 indent ) Trailing devices

2

COMPOSITE AIRCRAFT

3

. (1 indent ) Trains

3.1

MISSILE STABILIZATION OR TRAJECTORY CONTROL

3.11

. (1 indent ) Remote control

3.12

.. (2 indent ) Trailing wire

3.13

.. (2 indent ) Beam rider

3.14

.. (2 indent ) Radio wave

3.15

. (1 indent ) Automatic guidance

3.16

.. (2 indent ) Optical (includes infrared)

3.17

... (3 indent ) Optical correlation

3.18

... (3 indent ) Celestial navigation

3.19

.. (2 indent ) Radio wave

3.2

.. (2 indent ) Inertial

3.21

.. (2 indent ) Attitude control mechanisms

3.22

... (3 indent ) Fluid reaction type

3.23

. (1 indent ) Stabilized by rotation

3.24

. (1 indent ) Externally mounted stabilizing appendage (e.g., fin)

3.25

.. (2 indent ) Removable

3.26

.. (2 indent ) Sliding

3.27

.. (2 indent ) Collapsible

3.28

... (3 indent ) Longitudinally rotating

3.29

... (3 indent ) Radially rotating

3.3

.. (2 indent ) Extending beyond rear of missile

158.1

SPACECRAFT

158.2

. (1 indent ) Tethered

158.3

. (1 indent ) Inflated

158.4

. (1 indent ) Spacecraft formation, orbit, or interplanetary path

158.5

.. (2 indent ) Orbit insertion

158.6

.. (2 indent ) Orbital control

158.7

... (3 indent ) Aerobraking

158.8

... (3 indent ) Automatic

158.9

. (1 indent ) Reusable or returnable

159.1

.. (2 indent ) With reentry shield

159.2

... (3 indent ) Inflatable

159.3

.. (2 indent ) Having aerodynamic lifting body (e.g., Space Shuttle)

159.4

. (1 indent ) Modular and assembled in space

159.5

.. (2 indent ) Foldable

159.6

.. (2 indent ) Including use of launch vehicle part

164

. (1 indent ) Attitude control

165

.. (2 indent ) By gyroscope or flywheel

166

.. (2 indent ) By magnetic effect

167

.. (2 indent ) By gravity gradient

168

.. (2 indent ) By solar pressure

169

.. (2 indent ) By jet motor

170

.. (2 indent ) By nutation damper

171

.. (2 indent ) With attitude sensor means

171.1

. (1 indent ) With propulsion

171.2

.. (2 indent ) Steerable mount

171.3

.. (2 indent ) Launch from surface to orbit

171.4

... (3 indent ) Horizontal launch

171.5

.. (2 indent ) Without mass expulsion

171.6

. (1 indent ) Having launch pad cooperating structure

171.7

. (1 indent ) With shield or other protective means (e.g., meteorite shield, insulation, radiation/plasma shield)

171.8

.. (2 indent ) Active thermal control

171.9

. (1 indent ) With special crew accommodations

172.1

.. (2 indent ) Emergency rescue means (e.g., escape pod)

172.2

. (1 indent ) With fuel system details

172.3

.. (2 indent ) Fuel tank arrangement

172.4

. (1 indent ) Rendezvous or docking

172.5

.. (2 indent ) Including satellite servicing

172.6

. (1 indent ) With deployable appendage

172.7

. (1 indent ) With solar panel

172.8

.. (2 indent ) Having solar concentrator

172.9

.. (2 indent ) Having launch hold down means

173.1

. (1 indent ) With payload accommodation

173.2

.. (2 indent ) Including vibration control

173.3

.. (2 indent ) And payload deployment

4R

AIRCRAFT, HEAVIER-THAN-AIR

5

. (1 indent ) Airplanes, weight diminished by bouyant gas

6

. (1 indent ) Airplane and helicopter sustained

7R

.. (2 indent ) Convertible

7A

... (3 indent ) Rotary wing

7B

... (3 indent ) Tail sitters

7C

... (3 indent ) Tilting wing

8

. (1 indent ) Airplane and auto-rotating wing sustained

9

. (1 indent ) Airplane and paddle wheel sustained

10

. (1 indent ) Airplane and cylindrical rotor sustained

11

. (1 indent ) Airplane and beating wing sustained

12.1

. (1 indent ) Airplane and fluid sustained

12.2

.. (2 indent ) Circular

12.3

.. (2 indent ) Dual propulsion

12.4

.. (2 indent ) Thrust tilting

12.5

.. (2 indent ) With thrust diverting

12.6

.. (2 indent ) Channel wing

13

. (1 indent ) Airplane sustained

14

.. (2 indent ) Aerial torpedoes

15

.. (2 indent ) Fluid propelled

16

.. (2 indent ) Glider

17.11

. (1 indent ) Helicopter or auto-rotating wing sustained, i.e., gyroplanes

17.13

.. (2 indent ) Automatic or condition responsive control

17.15

.. (2 indent ) With safety lowering device

17.17

.. (2 indent ) With landing, mooring, or nonaerial propelling or steering gear

17.19

.. (2 indent ) With auxiliary propulsion, counter-troque or steering device

17.21

... (3 indent ) Auxiliary rotor

17.23

.. (2 indent ) Having plural lifting rotors

17.25

.. (2 indent ) Lifting rotor having lift direction varying means

17.27

.. (2 indent ) Lifting rotor supports, e.g., pylons

19

. (1 indent ) Paddle wheel sustained

20

.. (2 indent ) Feathering

21

. (1 indent ) Cylindrical rotor sustained

22

. (1 indent ) Beating wing sustained

23R

. (1 indent ) Fluid sustained

23A

.. (2 indent ) Lifting thrusters

23B

.. (2 indent ) Dual propulsion means, horizontal and vertical

23C

.. (2 indent ) Circular configuration

23D

.. (2 indent ) Thrust diverters

4A

. (1 indent ) Body attached

24

AIRCRAFT, LIGHTER-THAN-AIR

25

. (1 indent ) Airships with sustaining wings

26

. (1 indent ) Airship and helicopter sustained

27

. (1 indent ) Airship and paddle wheel sustained

28

. (1 indent ) Airship and beating wing sustained

29

. (1 indent ) Airship and fluid sustained

30

. (1 indent ) Airships

31

. (1 indent ) Balloons

32

.. (2 indent ) With parachutes

33

.. (2 indent ) Captive

34R

AIRCRAFT SUSTENTATION

35R

. (1 indent ) Sustaining airfoils

36

.. (2 indent ) Lifting fuselages

37

.. (2 indent ) Lifting struts

38

.. (2 indent ) Resiliently mounted

39

.. (2 indent ) Rotatable

198

.. (2 indent ) With lift modification

199.1

... (3 indent ) By vortex control outside of boundary layer

199.2

.... (4 indent ) Of tip vortex

199.3

....• (5 indent ) Active

199.4

....• (5 indent ) Wing tip foils/fences

200

... (3 indent ) By characteristic of airfoil's skin

200.1

.... (4 indent ) Vortex generation in boundary layer

201

... (3 indent ) Variable

202

.... (4 indent ) With landing gear

203

.... (4 indent ) Condition responsive

204

.... (4 indent ) By controlling boundary layer

204.1

....• (5 indent ) Actively controlled vortex generator

205

....• (5 indent ) With ionic or electrostatic surface

206

....• (5 indent ) With rotating member

207

....• (5 indent ) With blowing

208

....•. (6 indent ) And suction

209

....• (5 indent ) With suction

210

....• (5 indent ) With nose slot

211

....•. (6 indent ) Having trailing edge flap

212

....• (5 indent ) Having trailing edge flap

213

.... (4 indent ) By flap and/or spoiler

214

....• (5 indent ) At leading edge

215

....• (5 indent ) At trailing edge

216

....•. (6 indent ) Variable gap type, e.g., "Fowler Flap"

217

....•. (6 indent ) Plural, relatively pivotable

218

.... (4 indent ) Area

219

.... (4 indent ) Camber

45R

.. (2 indent ) Arrangement

46

... (3 indent ) Variable

47

.... (4 indent ) Dihedral

48

.... (4 indent ) Incidence

49

.... (4 indent ) Folding

45A

... (3 indent ) Canard

35A

.. (2 indent ) Compressible flow

34A

. (1 indent ) Annular airfoils

50

AIRCRAFT PROPULSION AND STEERING ON LAND OR WATER

51

AIRCRAFT, STEERING PROPULSION

52

. (1 indent ) Fluid

53R

AIRCRAFT POWER PLANTS

54

. (1 indent ) Mounting

55

. (1 indent ) Arrangement

56

.. (2 indent ) Tilting

57

. (1 indent ) Radiator arrangement

58

. (1 indent ) Auxiliary

59

. (1 indent ) High altitude

60

. (1 indent ) Transmission of power

61

. (1 indent ) Power plant using airship gas as fuel

53A

. (1 indent ) Starters

53B

. (1 indent ) Air intakes

62

AIRCRAFT PROPULSION

63

. (1 indent ) Launching

64

. (1 indent ) Manual

65

. (1 indent ) Screw

66

.. (2 indent ) Tilting

67

.. (2 indent ) Body encircling

68

.. (2 indent ) Elongated

69

.. (2 indent ) Contra-propeller arrangements

70

. (1 indent ) Paddle wheel

71

. (1 indent ) Reciprocating propeller

72

. (1 indent ) Beating wing

73R

. (1 indent ) Fluid

74

.. (2 indent ) Explosive jet

73B

.. (2 indent ) Vacuum induced by radial flow

73C

.. (2 indent ) Radial outward and downward flow

75.1

AIRCRAFT CONTROL

76R

. (1 indent ) Automatic

174

.. (2 indent ) Flutter control

175

.. (2 indent ) Electric course control

177

... (3 indent ) Multiple-axis altitude stabilization

178

.... (4 indent ) Trim control

179

.... (4 indent ) By change in bank

180

... (3 indent ) By change in altitude

181

.... (4 indent ) By change in pitch, angle of attack or flight path

182

.... (4 indent ) By change in speed

183

... (3 indent ) Of aircraft on its landing course

184

.... (4 indent ) By steering or yaw

185

....• (5 indent ) And vertical glide path control

186

.... (4 indent ) Vertical glide path control

187

....• (5 indent ) With "flare-out" detection

188

....• (5 indent ) Slope control by throttle

189

... (3 indent ) By remote radio signal

190

.... (4 indent ) Of pilotless aircraft

191

... (3 indent ) Acceleration control

192

... (3 indent ) With "dead-zone" control

193

... (3 indent ) With "softener" circuit

194

... (3 indent ) Monitoring circuit or response

195

.... (4 indent ) Self-adaptive control

196

... (3 indent ) Override of automatic control by human pilot

197

.... (4 indent ) By engaging manual control system

78.1

.. (2 indent ) Fluid

78.2

... (3 indent ) Fluid amplifiers

79

.. (2 indent ) Gyroscope actuated

80

.. (2 indent ) Gravity actuated

81

.. (2 indent ) Operated by landing

82

.. (2 indent ) Vane operated

76A

.. (2 indent ) Motor torque control of flaps or tabs

76B

.. (2 indent ) Velocity operated devices

76C

.. (2 indent ) Gust compensators

76J

.. (2 indent ) Steerable jets

220

. (1 indent ) Pilot operated

221

.. (2 indent ) Control system

222

... (3 indent ) Other than hand or foot actuated

223

... (3 indent ) With feel

224

... (3 indent ) With locking means

225

... (3 indent ) With dual purpose surface structure (e.g., elevons)

226

... (3 indent ) Fluid

227

.... (4 indent ) With electric control

228

... (3 indent ) Electric

229

... (3 indent ) Dual

230

... (3 indent ) With variable output

231

... (3 indent ) With interengaging gearing

232

... (3 indent ) With cable and linkage

233

... (3 indent ) Cable

234

.. (2 indent ) Controller

235

... (3 indent ) Rudder bar and pedal

236

... (3 indent ) Electrical pickup

237

... (3 indent ) Three-way steering, single control

87

. (1 indent ) Rudders and empennage

88

.. (2 indent ) Rudders universally mounted

89

.. (2 indent ) Elevators both front and rear

90R

.. (2 indent ) Ailerons and other roll control devices

90A

... (3 indent ) Roll control spoilers

90B

... (3 indent ) Balanced air pressure

91

. (1 indent ) Vertical fins

92

. (1 indent ) Stabilizing propellers

93

. (1 indent ) Stabilizing weights

94

.. (2 indent ) Ballast storage and release

95

.. (2 indent ) Ballast making

96

. (1 indent ) Airship control

97

.. (2 indent ) Buoyancy varying

98

.. (2 indent ) Gas bag inflation

99

.. (2 indent ) Gas release

99.1

. (1 indent ) Fuselage

99.11

. (1 indent ) Wing

99.12

. (1 indent ) Drag

99.13

. (1 indent ) Flutter control

99.14

. (1 indent ) Trim tab

99.2

. (1 indent ) Specific control connection or actuator

99.3

.. (2 indent ) Linkage

99.4

.. (2 indent ) Redundant arrangements

99.5

.. (2 indent ) Fluid

99.6

... (3 indent ) Fluid pressure source arrangement

99.7

... (3 indent ) Nonlinear fluid actuator

99.8

.. (2 indent ) Actively deformable material (e.g., piezoelectric, shape memory, magnetostrictive, electrostrictive)

99.9

.. (2 indent ) Failure tolerant (e.g., jam tolerant, no-back control connection)

100R

LANDING GEAR

101

. (1 indent ) Amphibian

102R

. (1 indent ) Retractable

102A

.. (2 indent ) Interconnected elements

102SL

.. (2 indent ) Strut locks

102SS

.. (2 indent ) Strut shortening

103R

. (1 indent ) Wheel

104R

.. (2 indent ) Resiliently mounted

104CS

... (3 indent ) Coil spring

104FP

... (3 indent ) Fluid pressure

104LS

... (3 indent ) Leaf spring

103S

.. (2 indent ) Prerotation

103W

.. (2 indent ) Crosswind gear

105

. (1 indent ) Water landing

106

.. (2 indent ) Flying boat

107

.. (2 indent ) Emergency

108

. (1 indent ) Skids

109

. (1 indent ) Tail supports

100C

. (1 indent ) Endless track

100A

. (1 indent ) Inflatable

110R

RETARDING AND RESTRAINING DEVICES

111

. (1 indent ) Wheel brake arrangement

112

. (1 indent ) Water brake arrangement

113

. (1 indent ) Aerodynamic retarders

110A

. (1 indent ) Brake

110B

. (1 indent ) Thrust reversers

110C

. (1 indent ) Cable or net support

110D

. (1 indent ) Aerodynamic braking

110E

. (1 indent ) Landing platforms

110F

. (1 indent ) Snares

110G

. (1 indent ) Arresting hoods

110H

. (1 indent ) Friction brakes

114R

LANDING FIELD ARRANGEMENT

115

. (1 indent ) Mooring devices

116

.. (2 indent ) Movable

114B

. (1 indent ) Blast deflectors

117R

AIRCRAFT STRUCTURE

118.1

. (1 indent ) Load (e.g., cargo) accommodation

118.2

.. (2 indent ) Removable, load bearing, airframe section

118.5

. (1 indent ) Passenger or crew accommodation

118.6

.. (2 indent ) Seating arrangement: berth or berthage

119

. (1 indent ) Fuselage and body construction

120

.. (2 indent ) Sectional

121

.. (2 indent ) Shields and other protective devices

122R

.. (2 indent ) Seats and safety belts

122A

... (3 indent ) Ejection seats

122AB

.... (4 indent ) Catapult and rocket combined

122AC

....• (5 indent ) Catapult

122AD

....• (5 indent ) Rocket

122AE

.... (4 indent ) Automatic sequence

122AF

....• (5 indent ) Canopy release

122AG

....• (5 indent ) Restraint positioning and protective devices

122AH

....• (5 indent ) Seat separation

122B

... (3 indent ) Safety belts

123.1

. (1 indent ) Airfoil construction

123.11

.. (2 indent ) Inflatable

123.12

.. (2 indent ) Corrugated panels

123.13

.. (2 indent ) Honeycomb in skin panels

123.14

.. (2 indent ) Hollow

123.2

.. (2 indent ) Sparless frame construction

123.3

... (3 indent ) Integral frame and skin

123.4

... (3 indent ) Open truss/lattice construction

123.5

.. (2 indent ) Nonmetallic filler (e.g., metal skin with foam, cork, or rubber filler)

123.6

... (3 indent ) Honeycomb

123.7

.. (2 indent ) Box beam

123.8

.. (2 indent ) Main spar

123.9

... (3 indent ) Tubular spar

124

.. (2 indent ) Sectional

125

. (1 indent ) Airship hull construction

126

. (1 indent ) Airship skin construction

127

. (1 indent ) Airship load attachment

128

. (1 indent ) Airship gas cell construction and arrangement

129.1

. (1 indent ) Details

129.2

.. (2 indent ) Fire prevention devices

129.3

.. (2 indent ) Windows

129.4

.. (2 indent ) Closures

129.5

... (3 indent ) Door

118.3

.... (4 indent ) Displaceable to function as ramp

129.6

.. (2 indent ) Steps

130

.. (2 indent ) Aerodynamic resistance reducing

131

.. (2 indent ) Joints and connections

132

.. (2 indent ) Skin fastening devices

133

.. (2 indent ) Materials of construction

134R

. (1 indent ) Ice prevention

134A

.. (2 indent ) Flexible surfaces

134B

.. (2 indent ) Heating fluid in airfoil

134C

.. (2 indent ) Deicing fluid on airfoil exterior

134D

.. (2 indent ) Electric

134E

.. (2 indent ) Nature of surface

134F

.. (2 indent ) Initiators and indicators

135R

. (1 indent ) Fuel supply

135A

.. (2 indent ) Aircraft refueling

135B

.. (2 indent ) Flexible containers

135C

.. (2 indent ) Fuel balancing systems

136

. (1 indent ) Material discharging and diffusing

137.1

. (1 indent ) Passenger or cargo loading or discharging

137.2

.. (2 indent ) Passenger

137.3

.. (2 indent ) Aerial cargo unloading by parachute extraction

137.4

.. (2 indent ) Releasable, externally mounted cargo

117A

. (1 indent ) Skin cooling

138R

SAFETY LOWERING DEVICES

139

. (1 indent ) Entire aircraft

140

. (1 indent ) Passenger compartment

141

.. (2 indent ) Seat

142

. (1 indent ) Parachutes

143

.. (2 indent ) Garment attached

144

.. (2 indent ) Aircraft element convertible to parachute

145

.. (2 indent ) Canopy construction

146

.. (2 indent ) Inflated bracing

147

.. (2 indent ) Storage and release

148

... (3 indent ) Packs

149

... (3 indent ) Opening devices

150

... (3 indent ) Timing mechanism

151R

.. (2 indent ) Harness

151A

... (3 indent ) Parchute harness connection

151B

... (3 indent ) Parachute load releasing

152

.. (2 indent ) Control devices

138A

. (1 indent ) Rotating vanes

153R

KITES

154

. (1 indent ) Airplane type

155R

. (1 indent ) Accessories

155A

.. (2 indent ) Kite controls

153A

. (1 indent ) Rotating

	CROSS-REFERENCE ART COLLECTIONS

900

LIGHTWEIGHT, WINGED, AIR VEHICLE (E,G,. ULTRALIGHT OR HANG GLIDER)

901

. (1 indent ) Having delta shaped wing

902

. (1 indent ) Having parachute type wing

903

. (1 indent ) Powered

904

. (1 indent ) Miscellaneous hardware or control

905

INFLATABLE EVACUATION SLIDE

	FOREIGN ART COLLECTIONS

FOR000

CLASS-RELATED FOREIGN DOCUMENTS

Any foreign patents or nonpatent literature from subclasses that have been reclassified have been transferred directly to the FOR Collection listed below. These classifications contain ONLY foreign patents or nonpatent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.

FOR100

AIRCRAFT CONTROL (244/75 R)

FOR101

. (1 indent ) Flutter prevention (244/75 A)

FOR102

.. (2 indent ) Fluid (244/78)

FOR103

. (1 indent ) Airfoil construction (244/123)

FOR104

SPACECRAFT (244/158 R)

FOR105

. (1 indent ) Exterior surface air resistance heat control (244/158 A)

FOR106

. (1 indent ) Space station (244/159)

FOR107

. (1 indent ) Reentry vehicle (244/160)

FOR108

.. (2 indent ) Rendezvous and docking (244/161)

FOR109

.. (2 indent ) Manned (244/162)

FOR110

... (3 indent ) Environmental control (244/163)

FOR111

.. (2 indent ) With propulsion (244/172)

FOR112

.. (2 indent ) With solar panel (244/173)

FOR113

... (3 indent ) Spaceship control (244/176)

FOR114

... (3 indent ) By vortex generator or dissipator (244/199)

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