IPC 6 English version B64C !A-B64C 11/50

IPC ⁶ English version

B64C-B64C01150

B64C 13/00 - B64C 39/12

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 64

AIRCRAFT; AVIATION; COSMONAUTICS

B 64 C

AEROPLANES; HELICOPTERS (air-cushion vehicles B 60 V)

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. [3]

Aircraft structures or fairings (boundary-layer controls B 64 C 21/00)

Fuselages; Constructional features common to fuselages, wings, stabilising surfaces, or the like (aerodynamical features common to fuselages, wings, stabilising surfaces, or the like B 64 C 23/00; flight-deck installations B 64 D)

Frames; Stringers; Longerons

Geodetic or other open-frame structures

Bulkheads

Construction or attachment of skin panels

Windows; Doors; Hatch covers or access panels; Surrounding frame structures; Canopies; Windscreens (fairings movable in conjunction with undercarriage elements B 64 C 25/16; bomb doors B 64 D 1/06)

specially adapted for mounting power plant

Floors

specially adapted for freight

Other structures integral with fuselages to facilitate loading

Steps mounted on, and retractable within, fuselages (readily removable B 64 D 9/00)

Attaching the wing or tail units or stabilising surfaces

Parts of fuselage relatively movable to improve pilots view

Parts of fuselage relatively movable to reduce overall dimensions of aircraft

Severable or jettisonable parts of fuselage facilitating emergency escape (ejector seats B 64 D 25/10)

comprising inflatable structural components (connection of valves to inflatable elastic bodies B 60 C 29/00)

adapted to receive aerials or radomes (aerials or radomes per se H 01 Q)

Constructions adapted to reduce effects of aerodynamic or other external heating

Sound or heat insulation

Wings (stabilising surfaces B 64 C 5/00; ornithopter wings B 64 C 33/02)

Shape of wings

Aerofoil profile

Frontal aspect

Spars; Ribs; Stringers (attaching wing unit to fuselage B 64 C 1/26)

Integral or sandwich constructions (layered products or sandwich constructions in general B 32 B)

Geodetic or other open-frame structures

Moulded or cast structures

Construction, shape, or attachment of separate skins, e.g. panels

Leading or trailing edges attached to primary structures, e.g. forming fixed slots

comprising inflatable structural components (connection of valves to inflatable elastic bodies B 60 C 29/00)

specially adapted for mounting power plant

Integrally-constructed tanks, e.g. for fuel (other aircraft fuel tanks or fuel systems B 64 D)

Structures adapted to reduce effects of aerodynamic or other external heating

Adjustment of complete wings or parts thereof

Varying angle of sweep

Adjusting about chordwise axes

Varying camber

by inflatable elements (connection of valves to inflatable elastic bodies B 60 C 29/00)

by relatively-movable parts of wing structures

by leading or trailing edge flaps (ailerons B 64 C 9/00)

Warping

Varying in area (flaps extendable to increase camber B 64 C 3/44)

Folding or collapsing to reduce overall dimensions of aircraft

provided with fences or spoilers (adjustable for control purposes B 64 C 9/00)

Stabilising surfaces (attaching stabilising surfaces to fuselage B 64 C 1/26)

Tailplanes (fins B 64 C 5/06)

Noseplanes

Fins (specially for wings B 64 C 5/08)

mounted on, or supported by, wings

adjustable

for retraction against or within fuselage or nacelle

Varying angle of sweep

about spanwise axes

in area

Structures or fairings not otherwise provided for

Nacelles

Adjustable control surfaces or members, e.g. rudders (trimming stabilising surfaces B 64 C 5/10; systems for actuating flying-control surfaces B 64 C 13/00)

Mounting or supporting thereof

with compound dependent movements

with two or more independent movements

bodily displaceable (varying camber of wings B 64 C 3/44)

one surface adjusted by movement of another, e.g. servo tabs (B 64 C 9/04 takes precedence; adjusting surfaces of different type or function B 64 C 9/12)

surfaces of different type or function being simultaneously adjusted

forming slots (boundary-layer control B 64 C 21/00)

at the rear of the wing

by single flaps

by multiple flaps

at the front of the wing

by single flap

by multiple flaps

by flaps at both the front and rear of the wing operating in unison

Balancing hinged surfaces, e.g. dynamically

Air braking surfaces (braking by parachutes B 64 D 17/80)

collapsing or retracting against or within other surfaces or other members

the members being fuselages or nacelles

Jet flaps

11/

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (rotors specially adapted for rotorcraft B 64 C 27/32)

11/

Hub construction

11/

Blade mountings

11/

for variable-pitch blades

11/

for non-adjustable blades

11/

rigid

11/

flexible

11/

Spinners

11/

Blades

11/

Aerodynamic features

11/

Constructional features

11/

Solid blades

11/

Hollow blades

11/

Fabricated blades

11/

Collapsible or foldable blades

11/

Blade pitch-changing mechanisms

11/

mechanical

11/

automatic

11/

non-automatic

11/

fluid, e.g. hydraulic

11/

automatic

11/

non-automatic

11/

electric

11/

Arrangements of, or constructional features peculiar to, multiple propellers

11/

Units of two or more coaxial propellers

11/

Phase synchronisation between multiple propellers

B64C 13/00 - B64C 39/12