Cooperative Patent Classification


Version: 2017.05
CPC
COOPERATIVE PATENT CLASSIFICATION
B64C
AEROPLANES; HELICOPTERS (air-cushion vehicles B60V) [2013-01]
NOTE

  • As far as possible, classification is made according to constructional features; classification according to particular kinds of aircraft is normally regarded as being of secondary importance, except in cases where this is considered to be the characteristic feature.
WARNING


  • The following IPC groups are not used in the CPC scheme. Subject matter covered by these groups is classified in the following CPC groups:
    B64C35/02 covered by B64C 35/00
Aircraft structures or fairings (boundary-layer controls B64C 21/00) [2013-01]
B64C 1/00
Fuselages; Constructional features common to fuselages, wings, stabilising surfaces and the like (aerodynamical features common to fuselages, wings, stabilising surfaces, and the like B64C 23/00; flight-deck installations B64D) [2013-01]
B64C 1/0009
.
{Aerodynamic aspects} [2013-01]
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} [2013-01]
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} [2013-01]
B64C 1/061
. .
{Frames} [2013-01]
B64C 1/062
. . .
{specially adapted to absorb crash loads} [2013-01]
B64C 1/063
. . .
{Folding or collapsing to reduce overall dimensions, e.g. foldable tail booms (folding or collapsing wings B64C 3/56)} [2013-01]
B64C 1/064
. .
{Stringers; Longerons} [2013-01]
B64C 1/065
. .
{Spars} [2013-01]
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} [2013-01]
B64C 1/069
. . .
{Joining arrangements therefor} [2013-01]
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 1/20
. .
specially adapted for freight [2013-01]
B64C 1/22
.
Other structures integral with fuselages to facilitate loading {, e.g. cargo bays, cranes (cargo door type ramps B64C 1/1415)} [2016-08]
B64C 1/24
.
Steps mounted on, and retractable within, fuselages (readily removable B64D 9/00) [2013-11]
B64C 1/26
.
Attaching the wing or tail units or stabilising surfaces [2013-01]
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 size for storage [2013-01]
B64C 1/32
.
Severable or jettisonable parts of fuselage facilitating emergency escape (ejector seats B64D 25/10) [2013-01]
B64C 1/34
.
comprising inflatable structural components (connection of valves to inflatable elastic bodies B60C 29/00) [2013-01]
B64C 1/36
.
adapted to receive aerials or radomes (aerials or radomes per se H01Q) [2013-01]
B64C 1/38
.
Constructions adapted to reduce effects of aerodynamic or other external heating {(cooling structural parts of aircrafts with air flow B64D 13/006)} [2013-01]
B64C 1/40
.
Sound or heat insulation, {e.g. using insulation blankets (insulating elements for vehicles, in general B60R 13/08)} [2013-01]
B64C 1/403
. .
{Arrangement of fasteners specially adapted therefor, e.g. of clips (in vehicles in general B60R 13/0206)} [2013-01]
B64C 1/406
. . .
{in combination with supports for lines, e.g. for pipes or cables (arrangement of elements of electric or fluid circuits specially adapted for vehicles, in general B60R 16/00; supports for pipes, cables or protective tubing F16L 3/00; installations of electric cables or lines in vehicles H02G 3/00)} [2013-01]
B64C 3/00
Wings (stabilising surfaces B64C 5/00; ornithopter wings B64C 33/02) [2013-01]
B64C 3/10
.
Shape of wings [2013-01]
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 [2013-01]
B64C 3/18
.
Spars; Ribs; Stringers (attaching wing unit to fuselage B64C 1/26) [2013-01]
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 (layered products or sandwich constructions in general B32B) [2013-01]
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 (connection of valves to inflatable elastic bodies B60C 29/00) [2013-01]
B64C 3/32
.
specially adapted for mounting power plant [2013-01]
B64C 3/34
.
Integrally-constructed tanks, e.g. for fuel (other aircraft fuel tanks or fuel systems B64D) [2013-01]
B64C 3/36
.
Structures adapted to reduce effects of aerodynamic or other external heating {(cooling structural parts of aircrafts with air flow B64D 13/006)} [2013-01]
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 (connection of valves to inflatable elastic bodies B60C 29/00) [2013-01]
B64C 3/48
. . .
by relatively-movable parts of wing structures [2013-01]
B64C 3/50
. . .
by leading or trailing edge flaps (ailerons B64C 9/00) [2013-01]
B64C 3/52
. .
Warping [2013-01]
B64C 3/54
. .
Varying in area (flaps extendable to increase camber B64C 3/44) [2013-01]
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 [2013-01]
B64C 3/58
.
provided with fences or spoilers (adjustable for control purposes B64C 9/00) [2013-01]
B64C 5/00
Stabilising surfaces (attaching stabilising surfaces to fuselage B64C 1/26) [2013-01]
B64C 5/02
.
Tailplanes (fins B64C 5/06) [2013-01]
B64C 5/04
.
Noseplanes [2013-01]
B64C 5/06
.
Fins (specially for wings B64C 5/08) [2013-01]
B64C 5/08
.
mounted on or supported by wings [2013-01]
B64C 5/10
.
adjustable [2013-01]
B64C 5/12
. .
for retraction against or within fuselage or nacelle [2013-01]
B64C 5/14
. .
Varying angle of sweep [2013-01]
B64C 5/16
. .
about spanwise axes [2013-01]
B64C 5/18
. .
in area (attaching stabilising surfaces to fuselage B64C 1/26) [2013-01]
B64C 7/00
Structures or fairings not otherwise provided for [2013-01]
B64C 7/02
.
Nacelles [2013-01]
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 (varying camber of wings B64C 3/44) [2013-01]
B64C 9/10
.
one surface adjusted by movement of another, e.g. servo tabs (B64C 9/04 takes precedence; adjusting surfaces of different type or function B64C 9/12) [2013-01]
B64C 9/12
.
surfaces of different type or function being simultaneously adjusted [2013-01]
B64C 9/14
.
forming slots (boundary-layer control B64C 21/00) [2013-01]
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 9/18
. . .
by single flaps [2013-01]
B64C 9/20
. . .
by multiple flaps [2013-01]
B64C 9/22
. .
at the front of the wing [2013-01]
B64C 9/24
. . .
by single flap [2013-01]
B64C 9/26
. . .
by multiple flaps [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 (braking by parachutes B64D 17/80) [2013-01]
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 (rotors specially adapted for rotorcraft B64C 27/32) [2013-01]
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 (for rotorcraft B64C 27/001)} [2013-01]
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 11/205
. . .
{for protecting blades, e.g. coating} [2013-01]
B64C 11/22
. . .
Solid blades [2013-01]
B64C 11/24
. . .
Hollow blades [2013-01]
B64C 11/26
. . .
Fabricated blades [2013-01]
B64C 11/28
. . .
Collapsible or foldable blades [2013-01]
B64C 11/30
.
Blade pitch-changing mechanisms [2013-01]
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)} [2013-01]
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 [2013-01]
B64C 13/06
. . .
adjustable to suit individual persons [2013-01]
B64C 13/08
. . .
Trimming zero positions [2013-01]
B64C 13/10
. . .
comprising warning devices [2013-01]
B64C 13/12
. . .
Dual control apparatus [2013-01]
B64C 13/14
. . .
lockable (locking in position to suit individual persons B64C 13/06) [2013-01]
B64C 13/16
. .
actuated automatically, e.g. responsive to gust detectors [2013-01]
B64C 13/18
. . .
using automatic pilot [2013-01]
B64C 13/20
. . .
using radiated signals [2013-01]
B64C 13/22
. . .
readily revertible to personal control [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 [2013-01]
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 13/36
. . .
fluid [2013-01]
B64C 13/38
. .
with power amplification [2013-01]
B64C 13/40
. . .
using fluid pressure [2013-01]
B64C 13/42
. . . .
having duplication or stand-by provisions [2013-01]
B64C 13/44
. . . .
overriding of personal controls; with automatic return to inoperative position [2013-01]
B64C 13/46
. . . .
with artificial feel [2013-01]
B64C 13/48
. . . .
characterised by the fluid being gaseous [2013-01]
B64C 13/50
. . .
using electrical energy [2013-01]
B64C 13/503
. . . .
{Fly-by-Wire} [2013-01]
B64C 2013/506
. . . . .
{using electro-hydrostatic actuators (EHA's)} [2013-01]
B64C 15/00
Attitude, flight direction, or altitude control by jet reaction [2013-01]
B64C 15/02
.
the jets being propulsion jets [2013-01]
B64C 15/12
. .
the power plant being tiltable [2013-01]
B64C 15/14
.
the jets being other than main propulsion jets (jet flaps B64C 9/38) [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 17/04
. .
by pendular bodies [2013-01]
B64C 17/06
. .
by gyroscopic apparatus (automatic pilot control B64C 13/18) [2013-01]
B64C 17/08
.
by ballast supply or discharge (for lighter-than-air aircraft B64B) [2013-01]
B64C 17/10
.
Transferring fuel to adjust trim [2013-01]
B64C 19/00
Aircraft control not otherwise provided for [2013-01]
B64C 19/02
.
Conjoint controls [2013-01]
Influencing air-flow over aircraft surfaces, not otherwise provided for [2013-01]
B64C 21/00
Influencing air-flow over aircraft surfaces by affecting boundary-layer flow (boundary-layer control in general F15D) [2013-01]
B64C 21/02
.
by use of slot, ducts, porous areas, or the like [2013-01]
B64C 21/025
. .
{for simultaneous blowing and sucking} [2013-01]
B64C 21/04
. .
for blowing (B64C 21/08 takes precedence) [2013-01]
B64C 21/06
. .
for sucking (B64C 21/08 takes precedence) [2013-01]
B64C 21/08
. .
adjustable [2013-01]
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 [2013-01]
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} [2017-05]
WARNING

B64C 23/069
. . .
{using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips} [2017-05]
WARNING

  • Group B64C 23/069 is incomplete pending reclassification of documents from group B64C 23/065.
    All groups listed in this Warning should be considered in order to perform a complete search.
B64C 23/072
. . . .
{the wing tip airfoil devices being moveable in their entirety} [2017-05]
WARNING

  • Group B64C 23/072 is incomplete pending reclassification of documents from group B64C 23/065.
    All groups listed in this Warning should be considered in order to perform a complete search.
B64C 23/076
. . . .
{the wing tip airfoil devices comprising one or more separate moveable members thereon affecting the vortices, e.g. flaps} [2017-05]
WARNING

  • Group B64C 23/076 is incomplete pending reclassification of documents from group B64C 23/065.
    All groups listed in this Warning should be considered in order to perform a complete search.
B64C 23/08
.
using Magnus effect [2013-01]
B64C 25/00
Alighting gear (air-cushion alighting gear B60V 3/08) [2013-01]
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 25/20
. . . . .
mechanical [2013-01]
B64C 25/22
. . . . .
fluid [2013-01]
B64C 25/24
. . . . .
electric [2013-01]
B64C 25/26
. . . . .
Control or locking systems therefor [2013-01]
B64C 25/28
. . . . . .
with indicating or warning devices [2013-01]
B64C 25/30
. . . . . .
emergency actuated [2013-01]
B64C 25/32
.
characterised by the ground or like engaging elements (arrester hooks B64C 25/68) [2013-01]
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 (construction of wheels or axles B60B; construction of tyres in general B60C) [2013-01]
B64C 25/38
. .
Endless-track type [2013-01]
B64C 25/40
. .
the elements being rotated before touch-down [2013-01]
B64C 25/405
. . .
{Powered wheels, e.g. for taxing} [2013-01]
B64C 25/42
. .
Arrangements or adaptations 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) [2013-01]
B64C 25/423
. . .
{Braking devices acting by reaction of gaseous medium (B64C 25/426 takes precedence; using rockets B64D 27/023)} [2013-01]
B64C 25/426
. . .
{Braking devices providing an automatic sequence of braking} [2013-01]
B64C 25/44
. . .
Actuating mechanisms [2013-01]
B64C 25/445
. . . .
{Brake regulators for preventing somersaulting} [2013-01]
B64C 25/46
. . . .
Brake regulators for preventing skidding or aircraft somersaulting {(anti-skidding regulators; electric or electronic controllers therefor B60T 8/1703)} [2013-01]
B64C 25/48
. . . .
differentially operated for steering purposes [2013-01]
B64C 25/50
. .
Steerable undercarriages; Shimmy damping (steering devices applicable to land vehicles B62D) [2013-01]
B64C 25/505
. . .
{Shimmy damping} [2013-01]
B64C 25/52
. .
Skis or runners [2013-01]
B64C 25/54
. .
Floats [2013-01]
B64C 25/56
. . .
inflatable (connection of valves to inflatable elastic bodies B60C 29/00) [2013-01]
B64C 25/58
. .
Arrangements or adaptations of shock-absorbers or springs (shimmy dampers B64C 25/50; vehicle suspension arrangements in general B60G; shock absorber per se F16F) [2013-01]
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 (arresting gear, e.g. on aircraft carriers B64F) [2013-01]
Aircraft kinds and components not otherwise provided for [2013-01]
B64C 27/00
Rotorcraft; Rotors peculiar thereto (alighting gear B64C 25/00) [2013-01]
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 [2013-01]
B64C 27/10
. . .
arranged coaxially [2013-01]
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 [2013-01]
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 (features common to rotors and propellers B64C 11/00) [2013-01]
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 (B64C 27/33, B64C 27/35 take precedence) [2013-01]
B64C 27/39
. . .
with individually articulated blades, i.e. with flapping or drag hinges [2013-01]
B64C 27/41
. . .
with flapping or universal joint, common to the blades [2013-01]
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 27/463
. . .
{Blade tips} [2013-01]
B64C 27/467
. . .
Aerodynamic features {(B64C 27/463 takes precedence)} [2013-01]
B64C 27/473
. . .
Constructional features {(B64C 27/463 takes precedence)} [2013-01]
B64C 2027/4733
. . . .
{Rotor blades substantially made from particular materials} [2013-01]
B64C 2027/4736
. . . . .
{from composite materials} [2013-01]
B64C 27/48
. . . .
Root attachment to rotor head [2013-01]
B64C 27/50
. . . .
Blades foldable to facilitate stowage of aircraft [2013-01]
B64C 27/51
.
Damping of blade movements [2015-11]
B64C 27/52
.
Tilting of rotor bodily relative to fuselage (of see-saw type construction B64C 27/43) [2013-01]
B64C 27/54
.
Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement [2013-01]
B64C 27/56
. .
Initiating means, e.g. actuated personally [2013-01]
B64C 27/57
. . .
automatic or condition responsive, e.g. responsive to rotor speed, torque or thrust [2013-01]
B64C 27/58
. .
Transmitting means [2013-01]
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 [2013-01]
B64C 27/68
. . . .
using electrical energy [2013-01]
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 (attitude, flight direction, or altitude control by jet reaction B64C 15/00; rotorcraft B64C 27/00; air-cushion vehicles B60V) [2013-01]
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 [2013-01]
B64C 31/00
Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft [2013-01]
B64C 31/02
.
Gliders, e.g. sailplanes (hang-gliders B64C 31/028) [2013-01]
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 (parachutes B64D 17/00) [2013-01]
B64C 31/04
.
Man-powered aircraft (ornithopters B64C 33/00) [2013-01]
B64C 31/06
.
Kites (hang-gliders B64C 31/028; toy aspects A63H 27/08; towed targets F41J {for propelling boats B63H 9/0685; for propelling wind driven boards, control means and harnesses therefor B63B 35/7976}) [2013-01]
B64C 2031/065
. .
{of inflatable wing type} [2013-01]
B64C 33/00
Ornithopters [2013-01]
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 (alighting gear B64C 25/00) [2013-01]
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 (vehicles capable of travelling in or on different media B60F) [2013-01]
B64C 37/02
.
Flying units formed by separate aircraft (towing, air-refuelling, or aircraft-carrying aircraft B64D) [2013-01]
B64C 39/00
Aircraft not otherwise provided for [2013-01]
B64C 39/001
.
{Flying saucers} [2013-01]
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)} [2013-01]
B64C 39/005
. .
{about a horizontal transversal axis} [2013-01]
B64C 39/006
. .
{about a vertical axis} [2013-01]
B64C 39/008
. .
{about a longitudinal axis} [2013-01]
B64C 39/02
.
characterised by special use [2013-01]
B64C 39/022
. .
{Tethered aircraft} [2013-01]
B64C 39/024
. .
{of the remote controlled vehicle type, i.e. RPV} [2013-01]
B64C 39/026
. .
{for use as personal propulsion unit} [2013-01]
B64C 39/028
. .
{Micro-sized aircraft} [2013-01]
B64C 39/04
.
having multiple fuselages or tail booms [2013-01]
B64C 39/06
.
having disc- or ring-shaped wings {(B64C 39/001 takes precedence)} [2013-01]
B64C 39/062
. .
{having annular wings} [2013-01]
B64C 39/064
. . .
{with radial airflow} [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 {(B64C 39/06 takes precedence)} [2013-01]
B64C 39/10
.
All-wing aircraft {(B64C 39/001 takes precedence)} [2013-01]
B64C 2039/105
.
{of blended wing body type} [2013-01]
B64C 39/12
.
Canard-type aircraft [2013-01]

B64C 2201/00
Unmanned aerial vehicles; Equipment therefor [2013-01]
B64C 2201/02
.
characterized by type of aircraft [2013-01]
B64C 2201/021
. .
Airplanes, i.e. having wings and tail planes [2013-01]
B64C 2201/022
. .
Balloons, blimps or airships [2013-01]
B64C 2201/024
. .
Helicopters, or autogiros [2013-01]
B64C 2201/025
. .
Ornithopters, i.e. generating lift and propulsion by flapping wings or insect like means [2013-01]
B64C 2201/027
. .
Flying platforms [2013-01]
B64C 2201/028
. .
of all-wing types [2013-01]
B64C 2201/04
.
characterised by type of power plant [2013-01]
B64C 2201/042
. .
by electric motors; Electric power sources therefor, e.g. fuel cells, solar panels or batteries [2013-01]
B64C 2201/044
. .
by internal combustion engines, e.g. oscillating piston or rotary piston engines [2013-01]
B64C 2201/046
. .
by rocket engines, ramjets, or pulse-reactors [2013-01]
B64C 2201/048
. .
by jet turbines, or turbofans [2013-01]
B64C 2201/06
.
characterised by in-flight supply of energy [2013-01]
B64C 2201/063
. .
by refueling [2013-01]
B64C 2201/066
. .
by recharging of batteries, e.g. by induction [2013-01]
B64C 2201/08
.
characterised by the launching method [2013-01]
B64C 2201/082
. .
Released from other aircraft [2013-01]
B64C 2201/084
. .
using catapults [2013-01]
B64C 2201/086
. .
by taking-off horizontally by own power, e.g. from a runway [2013-01]
B64C 2201/088
. .
Vertical take-off using special means (for helicopters B64C 2201/024; for balloons B64C 2201/022) [2013-01]
B64C 2201/10
.
characterised by the lift producing means [2013-01]
B64C 2201/101
. .
Lifting aerostatically, e.g. using lighter-than-air gases in chambers [2013-01]
B64C 2201/102
. .
Deployable wings, e.g. foldable or morphing wings [2013-01]
B64C 2201/104
. .
Fixed wings [2013-01]
B64C 2201/105
. .
Inflatable wings [2013-01]
B64C 2201/107
. .
Parachutes; Parasails; Kites; Membranes [2013-01]
B64C 2201/108
. .
using rotors, or propellers [2013-01]
B64C 2201/12
.
adapted for particular use [2013-01]
B64C 2201/121
. .
for dropping bombs; for electronic warfare; Flying bombs [2013-01]
B64C 2201/122
. .
as communication relays, e.g. high altitude platforms [2013-01]
B64C 2201/123
. .
for imaging, or topography [2013-01]
B64C 2201/125
. .
for meteorology [2013-01]
B64C 2201/126
. .
adapted for performing different kinds of missions, e.g. multipurpose use [2013-01]
B64C 2201/127
. .
for photography, or video recording, e.g. by using cameras [2013-01]
B64C 2201/128
. .
for transporting goods other than bombs [2013-01]
B64C 2201/14
.
characterised by flight control [2013-01]
B64C 2201/141
. .
autonomous, i.e. by navigating independently from ground or air stations, e.g. by using inertial navigation systems [INS] [2013-01]
B64C 2201/143
. . .
adapted for flying in formations [2013-01]
B64C 2201/145
. . .
using satellite radio beacon positioning systems, e.g. GPS [2013-01]
B64C 2201/146
. .
Remote controls [2013-01]
B64C 2201/148
. . .
using tethers for connecting to ground station [2013-01]
B64C 2201/16
.
characterised by type of propulsion unit [2013-01]
B64C 2201/162
. .
using ducted fans or propellers [2013-01]
B64C 2201/165
. .
using unducted propellers [2013-01]
B64C 2201/167
. .
using rockets, ramjets, pulse jets, plasma, or the like [2013-01]
B64C 2201/18
.
characterised by landing method [2013-01]
B64C 2201/182
. .
by being caught in mid-air, or next to the ground, e.g. using a net [2013-01]
B64C 2201/185
. .
by deploying parachutes, or the like [2013-01]
B64C 2201/187
. .
by landing horizontally, e.g. on a runway [2013-01]
B64C 2201/20
.
Methods for transport, or storage of unmanned aerial vehicles [2013-01]
B64C 2201/201
. .
in containers [2013-01]
B64C 2201/203
. .
in rucksacks, or bags to be carried by persons [2013-01]
B64C 2201/205
. .
by waterborne vehicles, e.g. ships or submarines or by hovercraft [2013-01]
B64C 2201/206
. .
by airborne vehicles, e.g. airplanes or helicopters [2013-01]
B64C 2201/208
. .
by landborne vehicles, e.g. trucks, lorries, tanks or cars [2013-01]
B64C 2201/22
.
having stealth characteristics [2013-01]
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]