IPC 7 English version B64C 13/00-B64C 39/12

IPC ⁷ English version

B64C - B64C 11/50

B64C01300-B64C03912

SECTION B – PERFORMING OPERATIONS; TRANSPORTING

B 64

AIRCRAFT; AVIATION; COSMONAUTICS

B 64 C

AEROPLANES; HELICOPTERS (air-cushion vehicles B60V)

13/

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

13/

Initiating means

13/

actuated personally

13/

adjustable to suit individual persons

13/

Trimming zero positions

13/

comprising warning devices

13/

Dual control apparatus

13/

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

13/

actuated automatically, e.g. responsive to gust detectors

13/

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

13/

using radiated signals

13/

readily revertible to personal control

13/

Transmitting means

13/

without power amplification or where power amplification is irrelevant

13/

mechanical

13/

using cable, chain, or rod mechanisms

13/

using cam mechanisms

13/

using toothed gearing

13/

fluid

13/

with power amplification

13/

using fluid pressure

13/

having duplication or stand-by provisions

13/

overriding of personal controls; with automatic return to inoperative position

13/

with artificial feel

13/

characterised by the fluid being gaseous

13/

using electrical energy

15/

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

15/

the jets being propulsion jets

15/

the power plant being tiltable

15/

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

17/

Aircraft stabilisation not otherwise provided for

17/

by gravity or inertia-actuated apparatus

17/

by pendular bodies

17/

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

17/

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

17/

Transferring fuel to adjust trim

19/

Aircraft control not otherwise provided for

19/

Conjoint controls

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

21/

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

21/

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

21/

for blowing (B64C 21/08 takes precedence)

21/

for sucking (B64C 21/08 takes precedence)

21/

adjustable

21/

using other surface properties, e.g. roughness

23/

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

23/

by means of rotating members of cylindrical or similar form

23/

by generating shock waves

23/

by generating vortices

23/

using Magnus effect

25/

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

25/

Undercarriages

25/

Arrangement or disposition on aircraft

25/

fixed

25/

non-fixed, e.g. jettisonable

25/

retractable, foldable, or the like

25/

sideways

25/

fore-and-aft

25/

Fairings movable in conjunction with undercarriage elements

25/

Operating mechanisms

25/

mechanical

25/

fluid

25/

electric

25/

Control or locking systems therefor

25/

with indicating or warning devices

25/

emergency actuated

25/

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

25/

wheeled type, e.g. multi-wheeled bogies

25/

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

25/

endless-track type

25/

the elements being rotated before touch-down

25/

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/

Actuating mechanisms

25/

Brake regulators for preventing skidding or aircraft somersaulting

25/

differentially operated for steering purposes

25/

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

25/

Skis or runners

25/

Floats

25/

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

25/

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/

Oleo legs

25/

Spring shock-absorbers; Springs

25/

using rubber or like elements

25/

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

25/

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

Aircraft kinds or components not otherwise provided for

27/

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

27/

Gyroplanes

27/

Helicopters

27/

with single rotor

27/

with two or more rotors

27/

arranged coaxially

27/

Rotor drives

27/

Direct drive between power plant and rotor hub

27/

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

27/

the means being jet-reaction apparatus

27/

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

27/

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

27/

with rotor blades fixed in flight to act as lifting surfaces

27/

characterised by provision of fixed wings

27/

with forward-propulsion propellers pivotable to act as lifting rotors

27/

with provision for reducing drag of inoperative rotor

27/

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

27/

having flexing arms [3]

27/

having elastomeric joints [3]

27/

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

27/

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

27/

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

27/

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

27/

with a feathering hinge only [3]

27/

Blades

27/

467

Aerodynamic features [6]

27/

473

Constructional features [6]

27/

Root attachment to rotor head

27/

Blades foldable to facilitate stowage of aircraft

27/

Damping of blade movements [3]

27/

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

27/

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

27/

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

27/

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

27/

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/

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/

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

27/

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

27/

Means acting on blades

27/

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

27/

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

27/

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

29/

Aircraft 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/

having its flight directional axis vertical when grounded

29/

characterised by jet-reaction propulsion

30/

Supersonic type aircraft [3]

31/

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

31/

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/

Man-powered aircraft (ornithopters B64C 33/00)

31/

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

33/

Ornithopters

33/

Wings; Actuating mechanisms therefor

35/

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

35/

Flying-boat hulls [3]

37/

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

37/

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

39/

Aircraft not otherwise provided for

39/

characterised by special use

39/

having multiple fuselages or tail booms [3]

39/

having disc- or ring-shaped wings [3]

39/

having multiple wings [3]

39/

All-wing aircraft [3]

39/

Canard-type aircraft [3]

B64C - B64C 11/50