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IPC 7
  B64C - B64C 11/50  
B64C01300-B64C03912
 

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 64AIRCRAFT; AVIATION; COSMONAUTICS


B 64 CAEROPLANES; HELICOPTERS (air-cushion vehicles B60V)


13/

00Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers

13/

02.Initiating means

13/

04..actuated personally

13/

06...adjustable to suit individual persons

13/

08...Trimming zero positions

13/

10...comprising warning devices

13/

12...Dual control apparatus

13/

14...lockable (locking in position to suit individual persons B64C 13/06)

13/

16..actuated automatically, e.g. responsive to gust detectors

13/

18...using automatic pilot (automatic pilots per se G05D 1/00)

13/

20...using radiated signals

13/

22...readily revertible to personal control

13/

24.Transmitting means

13/

26..without power amplification or where power amplification is irrelevant

13/

28...mechanical

13/

30....using cable, chain, or rod mechanisms

13/

32....using cam mechanisms

13/

34....using toothed gearing

13/

36...fluid

13/

38..with power amplification

13/

40...using fluid pressure

13/

42....having duplication or stand-by provisions

13/

44....overriding of personal controls; with automatic return to inoperative position

13/

46....with artificial feel

13/

48....characterised by the fluid being gaseous

13/

50...using electrical energy


15/

00Attitude, flight direction, or altitude control by jet reaction (details of jet-engine plants, e.g. of nozzles or jet pipes, F02K) [3]

15/

02.the jets being propulsion jets

15/

12..the power plant being tiltable

15/

14.the jets being other than main propulsion jets (jet flaps B64C 9/38)


17/

00Aircraft stabilisation not otherwise provided for

17/

02.by gravity or inertia-actuated apparatus

17/

04..by pendular bodies

17/

06..by gyroscopic apparatus (automatic-pilot control B64C 13/18)

17/

08.by ballast supply or discharge (for lighter-than-air aircraft B64B)

17/

10.Transferring fuel to adjust trim


19/

00Aircraft control not otherwise provided for

19/

02.Conjoint controls


Influencing air-flow over aircraft surfaces, not otherwise provided for


21/

00Influencing air-flow over aircraft surfaces by affecting boundary-layer flow (boundary-layer control in general F15D)

21/

02.by use of slot, ducts, porous areas, or the like

21/

04..for blowing (B64C 21/08 takes precedence)

21/

06..for sucking (B64C 21/08 takes precedence)

21/

08..adjustable

21/

10.using other surface properties, e.g. roughness


23/

00Influencing air-flow over aircraft surfaces, not otherwise provided for

23/

02.by means of rotating members of cylindrical or similar form

23/

04.by generating shock waves

23/

06.by generating vortices

23/

08.using Magnus effect



25/

00Alighting gear (air-cushion alighting gear B60V 3/08)

25/

02.Undercarriages

25/

04..Arrangement or disposition on aircraft

25/

06..fixed

25/

08..non-fixed, e.g. jettisonable

25/

10...retractable, foldable, or the like

25/

12....sideways

25/

14....fore-and-aft

25/

16....Fairings movable in conjunction with undercarriage elements

25/

18....Operating mechanisms

25/

20.....mechanical

25/

22.....fluid

25/

24.....electric

25/

26.....Control or locking systems therefor

25/

28......with indicating or warning devices

25/

30......emergency actuated

25/

32.characterised by elements which contact the ground or similar surface (arrester hooks B64C 25/68)

25/

34..wheeled type, e.g. multi-wheeled bogies

25/

36...Arrangements or adaptations of wheels, tyres, or axles in general (construction of wheels or axles B60B; construction of tyres in general B60C)

25/

38..endless-track type

25/

40..the elements being rotated before touch-down

25/

42..Arrangement or adaptation of brakes (the ground braking force being regulated, at least in part, by a speed condition, e.g. acceleration or deceleration of the ground engaging alighting gear, B60T 8/32)  [4]

25/

44...Actuating mechanisms

25/

46....Brake regulators for preventing skidding or aircraft somersaulting

25/

48....differentially operated for steering purposes

25/

50..Steerable undercarriages; Shimmy-damping (steering devices applicable to land vehicles B62D)

25/

52..Skis or runners

25/

54..Floats

25/

56...inflatable (connection of valves to inflatable elastic bodies B60C 29/00)

25/

58..Arrangements or adaptations of shock-absorbers or springs (shimmy-dampers B64C 25/50; vehicle suspension arrangements in general B60G; shock-absorbers per se F16F)

25/

60...Oleo legs

25/

62...Spring shock-absorbers; Springs

25/

64....using rubber or like elements

25/

66..Convertible alighting gear; Combinations of different kinds of ground or like engaging elements

25/

68.Arrester hooks (arresting gear, e.g. on aircraft carriers, B64F)


Aircraft kinds or components not otherwise provided for


27/

00Rotorcraft; Rotors peculiar thereto (alighting gear B64C 25/00)

27/

02.Gyroplanes

27/

04.Helicopters

27/

06..with single rotor

27/

08..with two or more rotors

27/

10...arranged coaxially

27/

12..Rotor drives

27/

14...Direct drive between power plant and rotor hub

27/

16...Drive of rotors by means, e.g. propellers, mounted on rotor blades

27/

18....the means being jet-reaction apparatus

27/

20.Rotorcraft characterised by having shrouded rotors, e.g. flying platforms

27/

22.Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft

27/

24..with rotor blades fixed in flight to act as lifting surfaces

27/

26..characterised by provision of fixed wings

27/

28..with forward-propulsion propellers pivotable to act as lifting rotors

27/

30..with provision for reducing drag of inoperative rotor

27/

32.Rotors (features common to rotors and propellers B64C 11/00)

27/

33..having flexing arms  [3]

27/

35..having elastomeric joints  [3]

27/

37..having articulated joints (B64C 27/33, B64C 27/35 take precedence)  [3]

27/

39...with individually articulated blades, i.e. with flapping or drag hinges  [3]

27/

41...with flapping hinge or universal joint, common to the blades  [3]

27/

43....see-saw type, i.e. two-bladed rotor  [3]

27/

45...with a feathering hinge only  [3]

27/

46..Blades

27/

467...Aerodynamic features  [6]

27/

473...Constructional features  [6]

27/

48....Root attachment to rotor head

27/

50....Blades foldable to facilitate stowage of aircraft

27/

51.Damping of blade movements  [3]

27/

52.Tilting of rotor bodily relative to fuselage (of see-saw type construction B64C 27/43)

27/

54.Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement

27/

56..characterised by the control initiating means, e.g. manually actuated (B64C 27/58 takes precedence)

27/

57...automatic or condition responsive, e.g. responsive to rotor speed, torque or thrust  [3]

27/

58..Transmitting means, e.g. interrelated with initiating means or means acting on blades (initiating means B64C 27/56; means acting on blades B64C 27/72)

27/

59...mechanical  [3]

27/

605....including swash plate, spider or cam mechanisms  [3]

27/

615....including flaps mounted on blades  [3]

27/

625....including rotating masses or servo rotors  [3]

27/

635....specially for controlling lag-lead movements of blades  [3]

27/

64...using fluid pressure, e.g. having fluid power amplification  [3]

27/

68...using electrical energy, e.g. having electrical power amplification  [3]

27/

72..Means acting on blades

27/

78..in association with pitch adjustment of blades of anti-torque rotor

27/

80..for differential adjustment of blade pitch between two or more lifting rotors

27/

82.characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting-rotor torque or changing direction of rotorcraft


29/

00Aircraft capable of landing or taking-off vertically (attitude, flight direction, or altitude control by jet reaction B64C 15/00; rotorcraft B64C 27/00; air-cushion vehicles B60V; details of jet-engine plants, e.g. of nozzles or jet pipes, F02K)

29/

02.having its flight directional axis vertical when grounded

29/

04..characterised by jet-reaction propulsion


30/

00Supersonic type aircraft  [3]


31/

00Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft

31/

02.Gliders, e.g. sailplanes (hang-gliders B64C 31/028)  [6]

31/

024..with auxiliary power plant  [6]

31/

028.Hang-glider-type aircraft; Microlight-type aircraft  [6]

31/

032..having delta shaped wing  [6]

31/

036..having parachute-type wing (parachutes B64D 17/00)  [6]

31/

04.Man-powered aircraft (ornithopters B64C 33/00)

31/

06.Kites (hang-gliders B64C 31/028; toy aspects A63H 27/08; towed targets F41J)


33/

00Ornithopters

33/

02.Wings; Actuating mechanisms therefor


35/

00Flying-boats; Seaplanes (alighting gear B64C 25/00)

35/

02.Flying-boat hulls  [3]


37/

00Convertible aircraft (vehicles capable of travelling in or on different media B60F)

37/

02.Flying units formed by separate aircraft (towing, air-refuelling, or aircraft-carrying aircraft B64D)


39/

00Aircraft not otherwise provided for

39/

02.characterised by special use

39/

04.having multiple fuselages or tail booms  [3]

39/

06.having disc- or ring-shaped wings  [3]

39/

08.having multiple wings  [3]

39/

10.All-wing aircraft  [3]

39/

12.Canard-type aircraft  [3]


  B64C - B64C 11/50   
 

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