Version: 2024.08
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This area was updated. Please refer to the CPC Notices of Changes and Notices of Editorial Corrections for more information.
CPC | COOPERATIVE PATENT CLASSIFICATION | ||||||
| B64C | AEROPLANES; HELICOPTERS [2023-01] NOTE
WARNINGS
|
Aircraft structures or fairings [2023-01] |
| B64C 1/00 | Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like [2023-01] WARNING
|
| B64C 1/0009 | . | {Aerodynamic aspects} [2023-01] WARNING
|
B64C 2001/0018 | . | {comprising two decks adapted for carrying passengers only} [2013-01] |
B64C 2001/0027 | . . | {arranged one above the other} [2013-01] |
B64C 2001/0036 | . . | {arranged side by side at the same level} [2013-01] |
B64C 2001/0045 | . | {Fuselages characterised by special shapes} [2021-08] |
B64C 2001/0054 | . | {Fuselage structures substantially made from particular materials} [2013-01] |
B64C 2001/0063 | . . | {from wood} [2013-01] |
B64C 2001/0072 | . . | {from composite materials} [2013-01] |
B64C 2001/0081 | . . | {from metallic materials} [2013-01] |
B64C 2001/009 | . | {comprising decompression panels or valves for pressure equalisation in fuselages or floors} [2013-01] |
| B64C 1/06 | . | Frames; Stringers; Longerons {; Fuselage sections} [2023-01] WARNING
|
| B64C 1/061 | . . | {Frames} [2023-01] WARNING
|
| B64C 1/062 | . . . | {specially adapted to absorb crash loads} [2023-01] WARNING
|
| B64C 1/063 | . . . | {Folding or collapsing to reduce overall dimensions, e.g. foldable tail booms} [2023-05] WARNING
|
| B64C 1/064 | . . | {Stringers; Longerons} [2023-01] WARNING
|
| B64C 1/065 | . . | {Spars} [2023-01] WARNING
|
B64C 1/066 | . . | {Interior liners} [2013-01] |
B64C 1/067 | . . . | {comprising means for preventing icing or condensation conditions} [2013-01] |
| B64C 1/068 | . . | {Fuselage sections} [2023-01] WARNING
|
B64C 1/0683 | . . . | {Nose cones} [2021-08] |
B64C 1/0685 | . . . | {Tail cones} [2021-08] |
| B64C 1/069 | . . . | {Joining arrangements therefor} [2023-01] WARNING
|
B64C 1/08 | . . | Geodetic or other open-frame structures [2013-01] |
B64C 1/10 | . . | Bulkheads [2013-01] |
B64C 1/12 | . . | Construction or attachment of skin panels [2013-01] |
B64C 1/14 | . | Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens {accessories therefor, e.g. pressure sensors, water deflectors, hinges, seals, handles, latches, windscreen wipers}(fairings movable in conjunction with undercarriage elements B64C 25/16; bomb doors B64D 1/06) [2013-01] |
B64C 1/1407 | . . | {Doors; surrounding frames} [2013-01] |
B64C 1/1415 | . . . | {Cargo doors, e.g. incorporating ramps} [2013-01] |
B64C 1/1423 | . . . | {Passenger doors} [2013-01] |
B64C 1/143 | . . . . | {of the plug type} [2013-01] |
B64C 1/1438 | . . . . | {of the sliding type} [2013-01] |
B64C 1/1446 | . . . | {Inspection hatches (for engine cowls B64D 29/08)} [2013-01] |
B64C 1/1453 | . . . | {Drain masts} [2013-01] |
B64C 1/1461 | . . . | {Structures of doors or surrounding frames} [2013-01] |
B64C 1/1469 | . . . | {Doors between cockpit and cabin} [2013-01] |
B64C 1/1476 | . . | {Canopies; Windscreens or similar transparent elements} [2013-01] |
B64C 1/1484 | . . . | {Windows (B64C 1/1492 takes precedence)} [2013-01] |
B64C 1/1492 | . . . | {Structure and mounting of the transparent elements in the window or windscreen} [2013-01] |
B64C 1/16 | . | specially adapted for mounting power plant [2013-01] |
B64C 1/18 | . | Floors [2013-01] |
B64C 1/22 | . | Other structures integral with fuselages to facilitate loading {, e.g. cargo bays, cranes} [2023-05] |
B64C 1/24 | . | Steps mounted on, and retractable within, fuselages [2023-01] |
| B64C 1/26 | . | Attaching the wing or tail units or stabilising surfaces [2023-01] WARNING
|
B64C 1/28 | . | Parts of fuselage relatively movable to improve pilots view [2013-01] |
| B64C 1/30 | . | Parts of fuselage relatively movable to reduce overall dimensions of aircraft [2023-01] WARNING
|
B64C 1/32 | . | Severable or jettisonable parts of fuselage facilitating emergency escape [2023-01] |
B64C 1/34 | . | comprising inflatable structural components [2023-01] |
B64C 1/36 | . | adapted to receive antennas or radomes [2023-01] |
B64C 1/38 | . | Constructions adapted to reduce effects of aerodynamic or other external heating [2023-05] |
B64C 1/40 | . | Sound or heat insulation {, e.g. using insulation blankets} [2023-01] |
B64C 3/00 |
B64C 3/10 | . | Shape of wings [2021-08] |
B64C 3/14 | . . | Aerofoil profile [2013-01] |
B64C 3/141 | . . . | {Circulation Control Airfoils} [2013-01] |
B64C 2003/142 | . . . | {with variable camber along the airfoil chord} [2013-01] |
B64C 2003/143 | . . . | {comprising interior channels} [2013-01] |
B64C 2003/144 | . . . | {including a flat surface on either the extrados or intrados} [2013-01] |
B64C 2003/145 | . . . | {comprising 'Gurney' flaps} [2013-01] |
B64C 2003/146 | . . . | {comprising leading edges of particular shape} [2013-01] |
B64C 2003/147 | . . . | {comprising trailing edges of particular shape} [2013-01] |
B64C 2003/148 | . . . | {comprising protuberances, e.g. for modifying boundary layer flow} [2013-01] |
B64C 2003/149 | . . . | {for supercritical or transonic flow} [2013-01] |
B64C 3/16 | . . | Frontal aspect [2021-08] |
B64C 3/18 | . | Spars; Ribs; Stringers [2023-01] |
B64C 3/182 | . . | {Stringers, longerons} [2013-01] |
B64C 3/185 | . . | {Spars} [2013-01] |
B64C 3/187 | . . | {Ribs} [2013-01] |
B64C 3/20 | . | Integral or sandwich constructions [2023-01] |
B64C 3/22 | . | Geodetic or other open-frame structures [2013-01] |
B64C 3/24 | . | Moulded or cast structures [2013-01] |
B64C 3/26 | . | Construction, shape, or attachment of separate skins, e.g. panels [2013-01] |
B64C 3/28 | . | Leading or trailing edges attached to primary structures, e.g. forming fixed slots [2013-01] |
B64C 3/30 | . | comprising inflatable structural components [2023-01] |
B64C 3/32 | . | specially adapted for mounting power plant [2013-01] |
B64C 3/34 | . | Tanks constructed integrally with wings, e.g. for fuel or water [2023-01] |
B64C 3/36 | . | Structures adapted to reduce effects of aerodynamic or other external heating [2023-05] |
B64C 3/38 | . | Adjustment of complete wings or parts thereof [2013-01] |
B64C 3/385 | . . | {Variable incidence wings} [2013-01] |
B64C 3/40 | . . | Varying angle of sweep [2013-01] |
B64C 3/42 | . . | Adjusting about chordwise axes [2013-01] |
B64C 3/44 | . . | Varying camber [2013-01] |
B64C 2003/445 | . . . | {by changing shape according to the speed, e.g. by morphing} [2013-01] |
B64C 3/46 | . . . | by inflatable elements [2023-01] |
B64C 3/48 | . . . | by relatively-movable parts of wing structures [2013-01] |
B64C 3/50 | . . . | by leading or trailing edge flaps [2023-01] |
B64C 3/52 | . . | Warping [2013-01] |
B64C 3/54 | . . | Varying in area [2023-01] |
B64C 2003/543 | . . . | {by changing shape according to the speed, e.g. by morphing} [2013-01] |
B64C 3/546 | . . . | {by foldable elements} [2013-01] |
| B64C 3/56 | . . | Folding or collapsing to reduce overall dimensions of aircraft [2023-01] WARNING
|
B64C 3/58 | . |
B64C 5/00 | Stabilising surfaces [2023-01] |
B64C 5/02 | . | Tailplanes [2023-01] |
B64C 5/04 | . | Noseplanes [2013-01] |
B64C 5/06 | . |
B64C 5/08 | . | mounted on, or supported by, wings [2023-01] |
B64C 5/10 | . | adjustable [2013-01] |
B64C 7/00 | Structures or fairings not otherwise provided for [2021-08] |
B64C 9/00 | Adjustable control surfaces or members, e.g. rudders (trimming stabilising surfaces B64C 5/10) [2013-01] |
B64C 2009/005 | . | {Ailerons} [2013-01] |
B64C 9/02 | . | Mounting or supporting thereof [2013-01] |
B64C 9/04 | . | with compound dependent movements [2013-01] |
B64C 9/06 | . | with two or more independent movements [2013-01] |
B64C 9/08 | . | bodily displaceable [2023-01] |
B64C 9/10 | . |
B64C 9/12 | . | surfaces of different type or function being simultaneously adjusted [2013-01] |
B64C 9/14 | . | forming slots [2023-01] |
B64C 2009/143 | . . | {comprising independently adjustable elements for closing or opening the slot between the main wing and leading or trailing edge flaps} [2013-01] |
B64C 9/146 | . . | {at an other wing location than the rear or the front (wings provided with fixed fences or spoilers B64C 3/58)} [2013-01] |
B64C 9/16 | . . | at the rear of the wing [2013-01] |
B64C 9/22 | . . | at the front of the wing [2013-01] |
B64C 9/28 | . . | by flaps at both the front and rear of the wing operating in unison [2013-01] |
B64C 9/30 | . | Balancing hinged surfaces, e.g. dynamically [2013-01] |
B64C 9/32 | . | Air braking surfaces [2023-01] |
B64C 9/323 | . . | {associated with wings} [2013-01] |
B64C 9/326 | . . | {associated with fuselages} [2013-01] |
B64C 9/34 | . | collapsing or retracting against or within other surfaces or other members [2013-01] |
B64C 9/36 | . . | the members being fuselages or nacelles [2013-01] |
B64C 9/38 | . | Jet flaps [2013-01] |
| B64C 11/00 | Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft [2023-01] NOTE
|
B64C 11/001 | . | {Shrouded propellers} [2013-01] |
B64C 11/002 | . | {Braking propellers, e.g. for measuring the power output of an engine} [2013-01] |
B64C 11/003 | . | {Variable-diameter propellers; Mechanisms therefor} [2013-01] |
B64C 11/005 | . | {Spiral-shaped propellers} [2013-01] |
B64C 11/006 | . | {Paddle wheels} [2013-01] |
B64C 11/007 | . | {Propulsive discs, i.e. discs having the surface specially adapted for propulsion purposes} [2013-01] |
B64C 11/008 | . | {characterised by vibration absorbing or balancing means} [2023-05] |
B64C 11/02 | . | Hub construction [2013-01] |
B64C 11/04 | . . | Blade mountings [2013-01] |
B64C 11/06 | . . . | for variable-pitch blades [2013-01] |
B64C 11/065 | . . . . | {variable only when stationary} [2013-01] |
B64C 11/08 | . . . | for non-adjustable blades [2013-01] |
B64C 11/10 | . . . . | rigid [2013-01] |
B64C 11/12 | . . . . | flexible [2013-01] |
B64C 11/14 | . . | Spinners [2013-01] |
B64C 11/16 | . | Blades [2013-01] |
B64C 11/18 | . . | Aerodynamic features [2013-01] |
B64C 11/20 | . . | Constructional features [2013-01] |
| B64C 11/30 | . | Blade pitch-changing mechanisms [2013-01] NOTE
|
B64C 11/301 | . . | {characterised by blade position indicating means} [2013-01] |
B64C 11/303 | . . | {characterised by comprising a governor} [2013-01] |
B64C 11/305 | . . | {characterised by being influenced by other control systems, e.g. fuel supply} [2013-01] |
B64C 11/306 | . . | {specially adapted for contrarotating propellers} [2013-01] |
B64C 11/308 | . . . | {automatic} [2013-01] |
B64C 11/32 | . . | mechanical [2013-01] |
B64C 11/325 | . . . | {comprising feathering, braking or stopping systems} [2013-01] |
B64C 11/34 | . . . | automatic [2013-01] |
B64C 11/343 | . . . . | {actuated by the centrifugal force or the aerodynamic drag acting on the blades} [2013-01] |
B64C 11/346 | . . . . | {actuated by the centrifugal force or the aerodynamic drag acting on auxiliary masses or surfaces} [2013-01] |
B64C 11/36 | . . . | non-automatic [2013-01] |
B64C 11/38 | . . | fluid, e.g. hydraulic [2013-01] |
B64C 11/385 | . . . | {comprising feathering, braking or stopping systems} [2013-01] |
B64C 11/40 | . . . | automatic [2013-01] |
B64C 11/42 | . . . | non-automatic [2013-01] |
B64C 11/44 | . . | electric [2013-01] |
B64C 11/46 | . | Arrangements of, or constructional features peculiar to, multiple propellers {(B64C 11/306 takes precedence)} [2023-01] |
B64C 11/48 | . . | Units of two or more coaxial propellers [2013-01] |
B64C 11/50 | . . | Phase synchronisation between multiple propellers [2013-01] |
B64C 13/00 | Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers [2013-01] |
B64C 13/02 | . | Initiating means [2013-01] |
B64C 13/04 | . . | actuated personally [2020-05] |
B64C 13/042 | . . . | {operated by hand} [2020-05] |
B64C 13/0421 | . . . . | {control sticks for primary flight controls} [2018-01] |
B64C 13/0423 | . . . . | {yokes or steering wheels for primary flight controls} [2018-01] |
B64C 13/0425 | . . . . | {for actuating trailing or leading edge flaps, air brakes or spoilers} [2018-01] |
B64C 13/0427 | . . . . | {for actuating trim} [2018-01] |
B64C 13/044 | . . . | {operated by feet, e.g. pedals} [2020-05] |
B64C 13/06 | . . . | adjustable to suit individual persons [2020-05] |
B64C 13/08 | . . . | Trimming zero positions [2020-05] |
B64C 13/10 | . . . | comprising warning devices [2020-05] |
B64C 13/12 | . . . | Dual control apparatus [2020-05] |
B64C 13/14 | . . . | lockable [2023-01] |
B64C 13/16 | . . | actuated automatically, e.g. responsive to gust detectors [2013-01] |
B64C 13/24 | . | Transmitting means [2013-01] |
B64C 13/26 | . . | without power amplification or where power amplification is irrelevant [2013-01] |
B64C 13/28 | . . . | mechanical [2020-05] |
B64C 13/30 | . . . . | using cable, chain, or rod mechanisms [2013-01] |
B64C 13/32 | . . . . | using cam mechanisms [2013-01] |
B64C 13/34 | . . . . | using toothed gearing [2013-01] |
B64C 13/341 | . . . . | {having duplication or stand-by provisions} [2020-05] |
B64C 13/343 | . . . . | {overriding of personal controls; with automatic return to inoperative position} [2020-05] |
B64C 13/345 | . . . . | {with artificial feel} [2020-05] |
B64C 13/36 | . . . | fluid [2013-01] |
B64C 13/38 | . . | with power amplification [2013-01] |
B64C 13/40 | . . . | using fluid pressure [2020-05] |
B64C 13/42 | . . . . | having duplication or stand-by provisions [2020-05] |
B64C 13/44 | . . . . | overriding of personal controls; with automatic return to inoperative position [2020-05] |
B64C 13/46 | . . . . | with artificial feel [2020-05] |
B64C 13/48 | . . . . | characterised by the fluid being gaseous [2013-01] |
B64C 13/50 | . . . | using electrical energy [2020-05] |
B64C 13/503 | . . . . | {Fly-by-Wire} [2020-05] |
B64C 13/504 | . . . . | {using electro-hydrostatic actuators [EHA's]} [2020-05] |
B64C 13/505 | . . . . | {having duplication or stand-by provisions} [2020-05] |
B64C 13/506 | . . . . | {overriding of personal controls; with automatic return to inoperative position} [2020-05] |
B64C 13/507 | . . . . | {with artificial feel} [2020-05] |
B64C 15/00 | Attitude, flight direction, or altitude control by jet reaction [2013-01] |
B64C 17/00 | Aircraft stabilisation not otherwise provided for [2013-01] |
B64C 17/02 | . | by gravity or inertia-actuated apparatus [2013-01] |
B64C 17/08 | . | by ballast supply or discharge [2023-01] |
B64C 17/10 | . | Transferring fuel to adjust trim [2013-01] |
B64C 19/00 | Aircraft control not otherwise provided for [2013-01] |
Influencing air flow over aircraft surfaces, not otherwise provided for [2023-01] |
B64C 21/00 | Influencing air flow over aircraft surfaces by affecting boundary layer flow [2024-08] |
B64C 21/01 | . | Boundary layer ingestion [BLI] propulsion [2024-08] |
B64C 21/02 | . | by use of slot, ducts, porous areas or the like [2023-01] |
B64C 21/025 | . . | {for simultaneous blowing and sucking} [2024-08] |
B64C 21/04 | . . | for blowing [2024-08] |
B64C 21/06 | . . |
B64C 21/08 | . . | adjustable [2024-08] |
B64C 21/10 | . | using other surface properties, e.g. roughness [2013-01] |
B64C 23/00 | Influencing air flow over aircraft surfaces, not otherwise provided for [2023-01] |
B64C 23/005 | . | {by other means not covered by groups B64C 23/02 - B64C 23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds} [2016-05] |
B64C 23/02 | . | by means of rotating members of cylindrical or similar form [2013-01] |
B64C 23/04 | . | by generating shock waves [2013-01] |
B64C 23/06 | . | by generating vortices [2013-01] |
B64C 23/065 | . . | {at the wing tips} [2019-02] |
B64C 23/069 | . . . | {using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips} [2019-02] |
B64C 23/072 | . . . . | {the wing tip airfoil devices being moveable in their entirety} [2019-02] |
B64C 23/076 | . . . . | {the wing tip airfoil devices comprising one or more separate moveable members thereon affecting the vortices, e.g. flaps} [2019-02] |
B64C 23/08 | . | using Magnus effect [2013-01] |
B64C 25/00 |
B64C 25/001 | . | {Devices not provided for in the groups B64C 25/02 - B64C 25/68} [2016-05] |
B64C 2025/003 | . . | {Means for reducing landing gear noise, or turbulent flow around it, e.g. landing gear doors used as deflectors} [2013-01] |
B64C 2025/005 | . . | {Tail skids for fuselage tail strike protection on tricycle landing gear aircraft} [2013-01] |
B64C 2025/006 | . . | {Landing gear legs comprising torque arms} [2013-01] |
B64C 2025/008 | . . | {Comprising means for modifying their length, e.g. for kneeling, for jumping, or for leveling the aircraft} [2013-01] |
B64C 25/02 | . | Undercarriages [2013-01] |
B64C 25/04 | . . | Arrangement or disposition on aircraft [2013-01] |
B64C 25/06 | . . | fixed [2013-01] |
B64C 25/08 | . . | non-fixed, e.g. jettisonable [2013-01] |
B64C 25/10 | . . . | retractable, foldable, or the like [2013-01] |
B64C 25/12 | . . . . | sideways [2013-01] |
B64C 2025/125 | . . . . . | {into the fuselage, e.g. main landing gear pivotally retracting into or extending out of the fuselage} [2013-01] |
B64C 25/14 | . . . . | fore-and-aft [2013-01] |
B64C 25/16 | . . . . | Fairings movable in conjunction with undercarriage elements [2013-01] |
B64C 25/18 | . . . . | Operating mechanisms [2013-01] |
B64C 25/32 | . | characterised by elements which contact the ground or similar surface (arrester hooks B64C 25/68) [2023-01] |
B64C 2025/325 | . . | {specially adapted for helicopters} [2013-01] |
B64C 25/34 | . . | wheeled type, e.g. multi-wheeled bogies [2013-01] |
B64C 2025/345 | . . . | {Multi-wheel bogies having one or more steering axes} [2013-01] |
B64C 25/36 | . . . | Arrangements or adaptations of wheels, tyres or axles in general [2023-01] |
B64C 25/38 | . . | endless-track type [2017-08] |
B64C 25/40 | . . | the elements being rotated before touch-down [2013-01] |
B64C 25/405 | . . | {Powered wheels, e.g. for taxing} [2023-05] |
B64C 25/42 | . . | Arrangement or adaptation of brakes [2023-01] |
B64C 25/423 | . . . | {Braking devices acting by reaction of gaseous medium} [2023-05] |
B64C 25/426 | . . . | {Braking devices providing an automatic sequence of braking} [2013-01] |
B64C 25/44 | . . . | Actuating mechanisms [2013-01] |
B64C 25/50 | . . | Steerable undercarriages; Shimmy-damping [2023-01] |
B64C 25/52 | . . | Skis or runners [2013-01] |
B64C 25/54 | . . | Floats [2013-01] |
B64C 25/58 | . . |
B64C 25/60 | . . . | Oleo legs [2013-01] |
B64C 25/62 | . . . | Spring shock-absorbers; Springs [2013-01] |
B64C 25/64 | . . . . | using rubber or like elements [2013-01] |
B64C 25/66 | . . | Convertible alighting gear; Combinations of different kinds of ground or like engaging elements [2013-01] |
B64C 25/68 | . | Arrester hooks [2023-01] |
Aircraft kinds or components not otherwise provided for [2023-01] |
B64C 27/00 | Rotorcraft; Rotors peculiar thereto [2023-01] |
B64C 27/001 | . | {Vibration damping devices} [2013-01] |
B64C 2027/002 | . . | {mounted between the rotor drive and the fuselage} [2013-01] |
B64C 2027/003 | . . | {mounted on rotor hub, e.g. a rotary force generator} [2013-01] |
B64C 2027/004 | . . | {using actuators, e.g. active systems} [2013-01] |
B64C 2027/005 | . . | {using suspended masses} [2013-01] |
B64C 27/006 | . | {Safety devices} [2013-01] |
B64C 27/007 | . . | {adapted for detection of blade cracks} [2013-01] |
B64C 27/008 | . | {Rotors tracking or balancing devices} [2013-01] |
B64C 27/02 | . | Gyroplanes [2013-01] |
B64C 27/021 | . . | {Rotor or rotor head construction (for helicopters B64C 27/32)} [2013-01] |
B64C 27/022 | . . . | {Devices for folding or adjusting the blades} [2013-01] |
B64C 27/023 | . . . | {Construction of the blades; Coating of the blades} [2013-01] |
B64C 27/024 | . . . | {Devices for shifting the rotor axis} [2013-01] |
B64C 27/025 | . . . | {Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors} [2013-01] |
B64C 27/026 | . . . | {Devices for converting a fixed wing into an autorotation rotor and viceversa} [2013-01] |
B64C 27/027 | . . | {Control devices using other means than the rotor} [2013-01] |
B64C 27/028 | . . | {Other constructional elements; Rotor balancing} [2013-01] |
B64C 27/04 | . | Helicopters [2013-01] |
B64C 27/06 | . . | with single rotor [2013-01] |
| B64C 27/08 | . . | with two or more rotors [2023-01] WARNING
|
| B64C 27/10 | . . . | arranged coaxially [2023-01] WARNING
|
B64C 27/12 | . . | Rotor drives [2013-01] |
B64C 2027/125 | . . . | {including toroidal transmissions, e.g. of the CVT type} [2013-01] |
B64C 27/14 | . . . | Direct drive between power plant and rotor hub [2013-01] |
B64C 27/16 | . . . | Drive of rotors by means, e.g. propellers, mounted on rotor blades [2013-01] |
B64C 27/18 | . . . . | the means being jet-reaction apparatus [2013-01] |
| B64C 27/20 | . | Rotorcraft characterised by having shrouded rotors, e.g. flying platforms [2023-01] WARNING
|
B64C 27/22 | . | Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft [2013-01] |
B64C 27/24 | . . | with rotor blades fixed in flight to act as lifting surfaces [2013-01] |
B64C 27/26 | . . | characterised by provision of fixed wings [2013-01] |
B64C 27/28 | . . | with forward-propulsion propellers pivotable to act as lifting rotors [2013-01] |
B64C 27/30 | . . | with provision for reducing drag of inoperative rotor [2013-01] |
B64C 27/32 | . | Rotors [2023-01] |
B64C 27/322 | . . | {Blade travel limiting devices, e.g. droop stops} [2013-01] |
B64C 27/325 | . . | {Circulation-control rotors} [2013-01] |
B64C 27/327 | . . | {Retention means relieving the stress from the arm, e.g. tie-bars} [2013-01] |
B64C 27/33 | . . | having flexing arms [2013-01] |
B64C 27/35 | . . | having elastomeric joints [2013-01] |
B64C 27/37 | . . | having articulated joints [2023-01] |
B64C 27/39 | . . . | with individually articulated blades, i.e. with flapping or drag hinges [2013-01] |
B64C 27/41 | . . . | with flapping hinge or universal joint, common to the blades [2023-01] |
B64C 27/43 | . . . . | see-saw type, i.e. two-bladed rotor [2013-01] |
B64C 27/45 | . . . | with a feathering hinge only [2013-01] |
B64C 27/46 | . . | Blades [2013-01] |
B64C 27/51 | . | Damping of blade movements [2015-11] |
B64C 27/52 | . |
B64C 27/54 | . | Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement [2013-01] |
B64C 27/56 | . . | characterised by the control initiating means, e.g. manually actuated [2023-01] |
B64C 27/57 | . . . | automatic or condition responsive, e.g. responsive to rotor speed, torque or thrust [2013-01] |
B64C 27/58 | . . | Transmitting means, e.g. interrelated with initiating means or means acting on blades (means acting on blades B64C 27/72) [2023-01] |
B64C 27/59 | . . . | mechanical [2013-01] |
B64C 27/605 | . . . . | including swash plate, spider or cam mechanisms [2013-01] |
B64C 27/615 | . . . . | including flaps mounted on blades [2013-01] |
B64C 27/625 | . . . . | including rotating masses or servo rotors [2013-01] |
B64C 27/635 | . . . . | specially for controlling lag-lead movements of blades [2013-01] |
B64C 27/64 | . . . | using fluid pressure, e.g. having fluid power amplification [2023-01] |
B64C 27/68 | . . . | using electrical energy, e.g. having electrical power amplification [2023-01] |
B64C 27/72 | . . | Means acting on blades [2013-01] |
B64C 2027/7205 | . . . | {on each blade individually, e.g. individual blade control [IBC]} [2013-01] |
B64C 2027/7211 | . . . . | {without flaps} [2013-01] |
B64C 2027/7216 | . . . . . | {using one actuator per blade} [2013-01] |
B64C 2027/7222 | . . . . . | {using airfoil deformation} [2013-01] |
B64C 2027/7227 | . . . . . | {using blowing slots actuated by piezoelectric actuators} [2013-01] |
B64C 2027/7233 | . . . . . | {using higher-harmonic control [HHC]} [2013-01] |
B64C 2027/7238 | . . . . . . | {by controlling existing swash plate actuators} [2013-01] |
B64C 2027/7244 | . . . . . . | {by using dedicated actuators} [2013-01] |
B64C 2027/725 | . . . . . | {using jets controlled by piezoelectric actuators} [2013-01] |
B64C 2027/7255 | . . . . . | {using one or more swash plates} [2013-01] |
B64C 2027/7261 | . . . . | {with flaps} [2013-01] |
B64C 2027/7266 | . . . . . | {actuated by actuators} [2013-01] |
B64C 2027/7272 | . . . . . . | {of the electro-hydraulic type} [2013-01] |
B64C 2027/7277 | . . . . . . | {of the magnetostrictive type} [2013-01] |
B64C 2027/7283 | . . . . . . | {of the piezoelectric type} [2013-01] |
B64C 2027/7288 | . . . . . . | {of the memory shape type} [2013-01] |
B64C 2027/7294 | . . . . . | {actuated mechanically, e.g. by means of linkages} [2013-01] |
B64C 27/78 | . . | in association with pitch adjustment of blades of anti-torque rotor [2013-01] |
B64C 27/80 | . . | for differential adjustment of blade pitch between two or more lifting rotors [2013-01] |
B64C 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 [2013-01] |
B64C 2027/8209 | . . | {Electrically driven tail rotors} [2013-01] |
B64C 2027/8218 | . . | {wherein the rotor or the jet axis is inclined with respect to the longitudinal horizontal or vertical plane of the helicopter} [2013-01] |
B64C 2027/8227 | . . | {comprising more than one rotor} [2013-01] |
B64C 2027/8236 | . . | {including pusher propellers} [2013-01] |
B64C 2027/8245 | . . | {using air jets} [2013-01] |
B64C 2027/8254 | . . | {Shrouded tail rotors, e.g. "Fenestron" fans} [2013-01] |
B64C 2027/8263 | . . | {comprising in addition rudders, tails, fins, or the like} [2013-01] |
B64C 2027/8272 | . . . | {comprising fins, or movable rudders} [2013-01] |
B64C 2027/8281 | . . . | {comprising horizontal tail planes} [2013-01] |
B64C 2027/829 | . . . | {comprising a V-tail units} [2013-01] |
B64C 29/00 | Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft (rotorcraft B64C 27/00) [2023-01] |
B64C 29/0008 | . | {having its flight directional axis horizontal when grounded} [2013-01] |
B64C 29/0016 | . . | {the lift during taking-off being created by free or ducted propellers or by blowers} [2013-01] |
B64C 29/0025 | . . . | {the propellers being fixed relative to the fuselage} [2013-01] |
B64C 29/0033 | . . . | {the propellers being tiltable relative to the fuselage} [2013-01] |
B64C 29/0041 | . . | {the lift during taking-off being created by jet motors} [2013-01] |
B64C 29/005 | . . . | {the motors being fixed relative to the fuselage} [2013-01] |
B64C 29/0058 | . . . | {with vertical jet} [2013-01] |
B64C 29/0066 | . . . | {with horizontal jet and jet deflector} [2013-01] |
B64C 29/0075 | . . . | {the motors being tiltable relative to the fuselage} [2013-01] |
B64C 29/0083 | . . | {the lift during taking-off being created by several motors of different type} [2013-01] |
B64C 29/0091 | . | {Accessories not provided for elsewhere} [2013-01] |
B64C 29/02 | . | having its flight directional axis vertical when grounded [2013-01] |
B64C 29/04 | . . | characterised by jet-reaction propulsion [2013-01] |
B64C 30/00 | Supersonic type aircraft [2023-05] |
B64C 31/00 | Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft [2013-01] |
B64C 31/02 | . |
B64C 31/024 | . . | with auxiliary power plant [2013-01] |
B64C 31/028 | . | Hang-glider-type aircraft; Microlight-type aircraft [2013-01] |
B64C 31/0285 | . . | {Safety devices} [2013-01] |
B64C 31/032 | . . | having delta shaped wing [2013-01] |
B64C 31/036 | . . | having parachute-type wing [2023-01] |
B64C 31/04 | . | Man-powered aircraft [2023-01] |
B64C 31/06 | . |
B64C 2031/065 | . . | {of inflatable wing type} [2013-01] |
| B64C 33/00 | Ornithopters [2023-01] WARNING
|
B64C 33/02 | . | Wings; Actuating mechanisms therefor [2013-01] |
B64C 33/025 | . . | {the entire wing moving either up or down} [2013-01] |
B64C 35/00 | Flying-boats; Seaplanes [2023-01] |
B64C 35/001 | . | {with means for increasing stability on the water} [2013-01] |
B64C 35/002 | . . | {using adjustable auxiliary floats} [2013-01] |
B64C 35/003 | . . | {using auxiliary floats at the wing tips} [2013-01] |
B64C 35/005 | . | {with propellers, rudders or brakes acting in the water} [2013-01] |
B64C 35/006 | . | {with lift generating devices} [2013-01] |
B64C 35/007 | . | {Specific control surfaces therefor} [2013-01] |
B64C 35/008 | . | {Amphibious sea planes} [2013-01] |
B64C 37/00 | Convertible aircraft [2023-01] |
B64C 37/02 | . | Flying units formed by separate aircraft (towing B64D 3/00; aircraft transported by aircraft B64D 5/00; air-refuelling B64D 39/00) [2023-01] |
| B64C 39/00 | Aircraft not otherwise provided for [2023-01] WARNING
|
| B64C 39/001 | . | {Flying saucers} [2023-01] WARNING
|
| B64C 39/003 | . | {with wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage (rotorcraft B64C 27/00; ornithopters B64C 33/00)} [2023-01] WARNING
|
| B64C 39/005 | . . | {about a horizontal transversal axis} [2023-01] WARNING
|
| B64C 39/006 | . . | {about a vertical axis} [2023-01] WARNING
|
| B64C 39/008 | . . | {about a longitudinal axis} [2023-01] WARNING
|
| B64C 39/02 | . | characterised by special use [2023-01] WARNING
|
| B64C 39/022 | . . | {Tethered aircraft} [2023-01] WARNING
|
| B64C 39/024 | . . | {of the remote controlled vehicle type, i.e. RPV} [2023-01] WARNING
|
B64C 39/026 | . . | {for use as personal propulsion unit} [2022-08] |
| B64C 39/028 | . . | {Micro-sized aircraft} [2023-01] WARNING
|
| B64C 39/029 | . | {Asymmetrical aircraft} [2023-01] WARNING
|
B64C 39/04 | . | having multiple fuselages or tail booms [2013-01] |
B64C 39/06 | . | having disc- or ring-shaped wings [2023-05] |
B64C 39/062 | . . | {having annular wings} [2013-01] |
B64C 39/066 | . . | {having channel wings} [2013-01] |
B64C 39/068 | . . | {having multiple wings joined at the tips} [2013-01] |
B64C 39/08 | . | having multiple wings [2023-01] |
B64C 39/10 | . | All-wing aircraft [2023-05] |
B64C 2039/105 | . . | {of blended wing body type} [2023-05] |
B64C 39/12 | . | Canard-type aircraft [2013-01] |
B64C 99/00 | Subject matter not provided for in other groups of this subclass [2022-08] |
B64C 2203/00 | Flying model aircraft, flying toy aircraft [2013-01] |
B64C 2211/00 | Modular constructions of airplanes or helicopters [2013-01] |
B64C 2220/00 | Active noise reduction systems [2013-01] |
B64C 2230/00 | Boundary layer controls [2013-01] |
B64C 2230/02 | . | by using acoustic waves generated by transducers [2013-01] |
B64C 2230/04 | . | by actively generating fluid flow [2013-01] |
B64C 2230/06 | . | by explicitly adjusting fluid flow, e.g. by using valves, variable aperture or slot areas, variable pump action or variable fluid pressure [2013-01] |
B64C 2230/08 | . | by influencing fluid flow by means of surface cavities, i.e. net fluid flow is null [2013-01] |
B64C 2230/10 | . | by influencing fluid flow by heating using other means than combustion [2013-01] |
B64C 2230/12 | . | by using electromagnetic tiles, fluid ionizers, static charges or plasma [2013-01] |
B64C 2230/14 | . | achieving noise reductions [2013-01] |
B64C 2230/16 | . | by blowing other fluids over the surface than air, e.g. He, H, O2 or exhaust gases [2013-01] |
B64C 2230/18 | . | by using small jets that make the fluid flow oscillate [2013-01] |
B64C 2230/20 | . | by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct [2013-01] |
B64C 2230/22 | . | by using a surface having multiple apertures of relatively small openings other than slots [2013-01] |
B64C 2230/24 | . | by using passive resonance cavities, e.g. without transducers [2013-01] |
B64C 2230/26 | . | by using rib lets or hydrophobic surfaces [2013-01] |
B64C 2230/28 | . | at propeller or rotor blades [2013-01] |