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EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
Definition statement
This subclass covers:
  • Dropping, ejecting, releasing or receiving articles in flight.
  • Arrangements of military equipment.
  • Equipment for handling freight
  • Flying suits
  • Passenger or crew accommodation; arrangements of seats
  • Air-treatment
  • De-icing
  • Parachutes
  • Emergency apparatus
  • Mounting power plant in aircraft, nacelles fairings, arrangement of power plants
  • Power plant control
  • Transmitting power from power plants to propellers or rotors
  • Fuel supply
  • Fuel tanks
  • Refuelling during flight
  • Arrangements of instruments
  • Indicators
Special rules of classification within this subclass

Indexing Code-codes with identical symbols starting with B64D are used for classifying additional information.

the articles being explosive, e.g. bombs (arming or setting bomb fuzes F42C)
Definition statement
This subgroup covers:

Ejector systems for missiles

Devices for separating bombs from fuselage.

References relevant to classification in this group
This subgroup does not cover:

Bombs, Missiles

Informative references
Attention is drawn to the following places, which may be of interest for search:

Rocket launchers

Arming or setting bomb fuzes

Bomb releasing; Bombs doors
Definition statement
This subgroup covers:

Bomb bays in fuselages

Bomb doors of bomb bays.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Bombs

Stowage arrangements for the devices in aircraft
Definition statement
This subgroup covers:

Arrangements for holding the load in the aircraft fuselage or means adapted to release the load.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Retaining devices for pallets or freight containers

Releasing
Definition statement
This subgroup covers:

Extractor parachutes

Ejector devices.

Absorbing landing shocks
Definition statement
This subgroup covers:

Rockets used as braking devices

Cushioning devices; shock absorbers, springs, etc. for absorbing landing chocks on load-carrying articles dropped/ejected/released from an aircraft.

One or more rocket could be positioned on the load and ignited just prior to touch-down, such that the rocket thrust brakes/cushions the arrival on the ground, as shown in this example (ignited rockets (22) circled in red):

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Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting (jettisoning fuel B64D 37/26)
Definition statement
This subgroup covers:

Fire fighting aircraft

Water baskets hanging below helicopters.

References relevant to classification in this group
This subgroup does not cover:

Jettisoning fuel

Informative references
Attention is drawn to the following places, which may be of interest for search:

Fire fighting or fire prevention

Taking-up articles from earth's surface
Definition statement
This subgroup covers:

Devices adapted on aircraft for hanging loads

Helicopter devices for transporting hanging loads

Informative references
Attention is drawn to the following places, which may be of interest for search:

Repair of electric lines

for towing targets (towed targets per se F41J)
Definition statement
This subgroup covers:

Devices mounted on aircraft for towing targets.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Targets as such

Aircraft transported by aircraft, e.g. for release or reberthing during flight (flying units formed by separate aircraft B64C 37/02)
Informative references
Attention is drawn to the following places, which may be of interest for search:

Flying units formed by separate aircraft

Space shuttles

Arrangements of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft (dropping bombs or the like B64D 1/00; armaments or mountings therefor per se F41)
Definition statement
This group covers:

Stealth structures

Armoured structures.

References relevant to classification in this group
This group does not cover:

Dropping bombs or the like

Informative references
Attention is drawn to the following places, which may be of interest for search:

Camouflage

Armoured garments

Arrangements of rocket launchers {or releasing means} (rocket launchers per se, e.g. rocket pods, F41F 3/06)
Definition statement
This subgroup covers:

Rail systems for rockets.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Ejector systems for missiles

Rocket launchers per se, e.g. rocket pods

Equipment for handling freight; Equipment for facilitating passenger embarkation or the like (emergency equipment B64D 17/00, B64D 19/00, B64D 25/00; structures integral with fuselage to facilitate loading, fuselage floors specially adapted for freight, steps mounted on and retractable within aircraft B64C; ground installations B64F)
Definition statement
This group covers:

Loadings systems and methods

Cargo handling.

References relevant to classification in this group
This group does not cover:

Emergency equipment

Structures integral with fuselage to facilitate loading, fuselage floors specially adapted for freight, steps mounted on and retractable within aircraft

Ground installations

Informative references
Attention is drawn to the following places, which may be of interest for search:

Securing or forwarding containers in vehicles

Aircraft floors adapted for freight

Aircraft ramps for loading

Containers

Roller ways

Determining centre of gravity in aircraft

Weighing aircraft

Special rules of classification within this group

There will be an indexing scheme for:

Powered cargo rollers (PDU)

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Power Drive Unit (PDU)

Powered rollers and drives to move containers and pallets within aircraft fuselages or cargo bays

Flying suits (helmets in general A42B 3/00; breathing helmets A62B 18/00)
Definition statement
This group covers:

Garments for pilots, e.g. g-suits, trousers or bladders

Helmets

Oxygen supply, e.g. valves, pilots' masks or controllers.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Breathing helmets

Respiratory or breathing apparatus

Helmets in general

High-altitude pressure suits

Special rules of classification within this group

There will be an indexing scheme for:

Anti-G suits and garments

High altitude suits

Suits with cooling or warming means.

Passenger or crew accomodation; Flight-deck installations not otherwise provided for
Definition statement
This group covers:

Cabin layouts

Passengers' oxygen masks.

Special rules of classification within this group

There will be an indexing scheme for:

Emergency oxygen supply and distribution systems

Passengers oxygen masks, their storage or deployment

Aircraft cabin illumination systems

Modular (preassemblies) units to create cabin structure, including interior layout

Cabin reading lights, e.g. passenger individual reading lights.

{Devices specially adapted for food or beverage distribution services}
Definition statement
This subgroup covers:

Food and beverage distribution systems

Interaction between trolley and cabin.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Trolleys adapted to be used in vehicles

{Arrangements for entertainment or communications, e.g. radio, television}
Definition statement
This subgroup covers:

Aircraft cabin layouts for amusement or media

Displays of navigation data using TV screens

References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Entertainment or communication arrangements for chairs or seats in land-type vehicles

Entertainment or communication arrangements for chairs or seats in water-type vehicles

Combined instruments indicating more than one navigational value, e.g. for aircraft

Informative references
Attention is drawn to the following places, which may be of interest for search:

Accessories for chairs or seats, adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like

{Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D 25/04)}
Definition statement
This subgroup covers:

Configuration of chairs, chair modifications, or particular chair structure for aeronautic passengers

{including a bed, e.g. cocoon type passenger seat modules}
Definition statement
This subgroup covers:

Chair unit combined with a generally horizontal surface for a reclining person and can include a canopy-type structure

  • This subgroup includes additional and separate surfaces or pieces to form a bed
References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Aircraft passenger seats convertible to a bed

{including tables or desks}
Definition statement
This subgroup covers:

Chair unit combined with a generally horizontal surface above a floor and can include storage space

Informative references
Attention is drawn to the following places, which may be of interest for search:

Arrangements or adaptations of trays as passenger fittings for vehicles

{with privacy shells, screens, separators or the like (class dividers B64D 11/0023)}
Definition statement
This subgroup covers:

Chair combined with obstructions to other passengers

References relevant to classification in this subclass/group
This subgroup does not cover:

Class dividers

{with devices specially adapted for exercising during travel; with devices specially adapted to prevent thrombosis}
Definition statement
This subgroup covers:

Chair combined with appliances for a person’s conditioning, muscle development, or anticlotting

References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Hand held massaging devices

Physical therapy devices for anti-thrombosis or anti-clotting

Informative references
Attention is drawn to the following places, which may be of interest for search:

Stools with exercising means or having special therapeutic or ergonomic effects

Massaging systems

Pneumatic or hydraulic massage

{with means for holding the passenger in a standing position}
Definition statement
This subgroup covers:

Chair combined with structure to steady an upright person

Informative references
Attention is drawn to the following places, which may be of interest for search:

Safety belts or body harnesses in vehicles

{specially adapted for children}
Definition statement
This subgroup covers:

Chair modified for pre-adult passenger

Informative references
Attention is drawn to the following places, which may be of interest for search:

Vehicle passenger seats for children

{with ejection means}
Definition statement
This subgroup covers:

Chair combined with a device to propel a passenger away from the chair

References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Pilot type ejection seats

Informative references
Attention is drawn to the following places, which may be of interest for search:

Ejecting or escaping means

{with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash}
Definition statement
This subgroup covers:

Chair combined with a device or a design to dissipate deceleration

Informative references
Attention is drawn to the following places, which may be of interest for search:

Vehicle seat constructed to protect the occupant from the effect of abnormal g-forces

Arrangements or fittings on vehicles for protecting or preventing injuries to occupants

Seat modification for pilots

{Belts or other passenger restraint means for passenger seats}
Definition statement
This subgroup covers:

Chair combined with a torso or limb encircling device or a device to hold a person in place

Informative references
Attention is drawn to the following places, which may be of interest for search:

Safety belts or body harnesses in general

Safety belts or body harnesses in vehicles

Harnessing for pilot

{Arrangements of airbags}
Definition statement
This subgroup covers:

Chair combined with a device to hold a passenger in place including an inflatable confining device

Informative references
Attention is drawn to the following places, which may be of interest for search:

Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g., air bags

{Arrangements of electrical connectors, e.g. for earphone, internet or electric supply}
Definition statement
This subgroup covers:

Chair combined with a configuration of mated conductors used to transmit sound, images, or current

Informative references
Attention is drawn to the following places, which may be of interest for search:

Arrangement of elements of electric or fluid circuits specially adapted for vehicles

{with individual temperature or ventilation control}
Definition statement
This subgroup covers:

Chair combined with personal heating, cooling, or air circulation

Informative references
Attention is drawn to the following places, which may be of interest for search:

Heating or ventilating devices for vehicles

{Seats combined with storage means}
Definition statement
This subgroup covers:

Chair combined with a cabinet or cabinet type structure

References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Stowage devices for passengers’ personal luggage

Personal storage means (e. g. luggage, magazines, etc.) or waste disposal bags

Informative references
Attention is drawn to the following places, which may be of interest for search:

Stowing or holding appliances inside vehicle primarily intended for personal property smaller than a suitcase

{Personal storage means or waste disposal bags}
Definition statement
This subgroup covers:

Chair storage for a passenger's carry-on belongings or garbage

References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Stowage devices for passengers’ personal luggage

Seats combined with storage means

Informative references
Attention is drawn to the following places, which may be of interest for search:

Stowing or holding appliances inside vehicle primarily intended for personal property smaller than a suitcase

{with features for adjustment or converting of seats}
Definition statement
This subgroup covers:

Chair having structure permitting repositioning chair portions or altering the chair configuration

Informative references
Attention is drawn to the following places, which may be of interest for search:

Reclining or easy chairs

Seat or part thereof being movable, e.g. adjustable

{characterised by the arrangement of electric motors for adjustment}
Definition statement
This subgroup covers:

Configuration of powered devices to reposition or alter a chair or chair portion

Informative references
Attention is drawn to the following places, which may be of interest for search:

Reclining or easy chairs adjustable via electric motor

Seat or part thereof being movable, e.g. adjustable via electric motor

{Adjustable inclination or position of seats}
Definition statement
This subgroup covers:

Chair tilt or chair configuration

Informative references
Attention is drawn to the following places, which may be of interest for search:

Reclining or easy chairs

Vehicle seat or part thereof being movable, e.g. adjustable

{Adjustable headrests}
Definition statement
This subgroup covers:

Chair with a repositionable support for a passenger’s portion above the torso

Informative references
Attention is drawn to the following places, which may be of interest for search:

Chairs with headrests

Seats for vehicles with headrest

{Adjustable foot or leg rests}
Definition statement
This subgroup covers:

Chair with a repositionable support for a passenger’s lower body

Informative references
Attention is drawn to the following places, which may be of interest for search:

Chairs with leg or footrest

Seats for vehicles with leg or foot rest

{Adjustable arm rests}
Definition statement
This subgroup covers:

Chair with a repositionable passenger upper body extremity support

Informative references
Attention is drawn to the following places, which may be of interest for search:

Chairs with arm rest

Seats for vehicles with arm rest

{Seats characterised by special features of stationary arms, foot or head rests}
Definition statement
This subgroup covers:

Chair with particular characteristic of fixed supports for body parts other than the torso

Informative references
Attention is drawn to the following places, which may be of interest for search:

Chairs with headrests

Seats for vehicles with headrest

Chairs with leg or footrests

Seats for vehicles with leg or foot rest

Chairs with arm rest

Seats for vehicles with arm rest

{Seats characterised by special upholstery or cushioning features}
Definition statement
This subgroup covers:

Chair with particular characteristic of a soft covering or padding

Informative references
Attention is drawn to the following places, which may be of interest for search:

Chair of special materials

Vehicle seat with upholstery

{Lower frame constructions}
Definition statement
This subgroup covers:

Chair understructure or substructure lacking design for impact

References relevant to classification in this subclass/group

Examples of places where the subject matter of this group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Crash frames

Informative references
Attention is drawn to the following places, which may be of interest for search:

Vehicle seat constructed to protect the occupant from the effect of abnormal-forces, e.g. crash or safety seats

{Seats characterised by special features for reducing weight}
Definition statement
This subgroup covers:

Chair design or materials minimizing mass

  • Design lacking a frame, e.g., back plate
  • Materials such as carbon fibers, aluminum, composites, etc.
  • Pneumatic elements
  • One piece design, i.e., integral back and bottom
  • Hollow pieces, e.g., tubular frame members
{specially adapted for cabin crew}
Definition statement
This subgroup covers:

Chair designed to be deployed during take-off and landing and stowed during flight

  • Foldable seats on a wall or bulkhead specifically for a purser or flight attendant
{Width modification of seat assemblies, e.g. for class modification}
Definition statement
This subgroup covers:

Chair with accommodations for transverse adjustments

Informative references
Attention is drawn to the following places, which may be of interest for search:

Vehicle seats with transverse adjustment of arm rests

{Means for fastening seats to floors, e.g. to floor rails}
Definition statement
This subgroup covers:

Structure to attach the chair to the passenger cabin walking surface

Informative references
Attention is drawn to the following places, which may be of interest for search:

Vehicle seat positioning and locking mechanism

{Seats suspended from aircraft ceiling}
Definition statement
This subgroup covers:

Structure to attach a chair to the passenger cabin overhead surface

{Seats suspended from aircraft walls}
Definition statement
This subgroup covers:

Structure to attach a chair to the passenger cabin side or generally vertical surface

  • Hammock type seats
  • Seats used in troop transport aircraft
Arrangements or adaptations of air-treatment apparatus for aircraft crew or passenger, or freight space; {or structural parts of the aircarft} (treatment rooms with artificial climate for medical purposes A61G 10/02; respiratory apparatus in general A62B; for for vehicles in general B60H)
Definition statement
This group covers:

Accessories for air-conditioning systems; e.g. valves, nozzles, air mixing chambers.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Attention is drawn to the following places, which may be of interest for search: Treatment rooms with artificial climate for medical purposes

Respiratory apparatus in general

For vehicles in general

Valves

Special rules of classification within this group

There will be an indexing scheme for:

Air nozzles for passenger ventilation.

{the air being used to cool structural parts of the aircraft}
Definition statement
This subgroup covers:

Arrangements and devices to direct cooling air from air-conditioning to structural parts of the aircraft.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Fuselage structures adapted to reduce the effects of aerodynamic or other external heating

Aircraft heat insulation

Wing constructions adapted to reduce effects of aerodynamic or other external heating

Conditioning fuel

the air being pressurised
Definition statement
This subgroup covers:

Cabin pressurising valves

Security devices.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Valves

Automatic control of pressure
Definition statement
This subgroup covers:

Cabin pressurising systems.

the air being conditioned (pressurising B64D 13/02)
Definition statement
This subgroup covers:

Air conditioning systems; e.g. air cycle machines.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Air cycle machines in general

Cabin pressurizing systems

Special rules of classification within this group

There will be an indexing scheme for Environmental Control Systems (ECS):

ECS providing hot air or liquid for de-icing non-ECS components

ECS with provisions for cooling avionics or using avionics waste heat

ECS with provisions to reduce or manage the amount of bleed air

ECS used in combination with boundary layer control

ECS with means for cabin air effusion; i.e. distribution of air in the cabin

ECS with subsystems for cooling food, catering or loads

ECS using where chemical reactions, e.g. using heat from e.g. chemical components

ECS with CO2 removers or CO2content control

ECS with dual systems

ECS using electric motors or generators

ECS with energy recovery means energy for pressurized cabins

ECS using filters; e.g. against smoke

ECS with provisions for cooling or inerting fuel systems

ECS with humidity control

ECS with means for preventing icing in ECS components

ECS with ionizers

ECS including a liquid subsystem

ECS combined with OBOGS

ECS with Oxygen content control

ECS with Ozone content control

ECS where the air is recirculated into and from the cabin, i.e. with recirculation

ECS with special provisions against smoke from cigarettes

ECS combined with power plant starting systems

ECS with air flow, temperature or humidity controls for cabin zones or personal areas

Glossary of terms
In this subgroup, the following terms (or expressions) are used with the meaning indicated:

ECS

Environmental control system

OBOGS

On-Board Oxygen Generation System

the air being heated or cooled
Definition statement
This subgroup covers:

Systems for cooling or heating cabin air, e.g. using heat from radiator.

Heaters

Cabin ventilation systems.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Heating, cooling or ventilating devices in vehicles

Emergency apparatus or devices, not otherwise provided for (parachutes B64D 17/00, B64D 19/00; jettisoning of fuel tanks or fuel B64D 37/00; {specially adapted for protection against criminal attack, e.g. anti-hijacking systems B64D 45/0015} ; safety belts or body harnesses in general A62B 35/00; safety belts or body harnesses for land vehicles B60R 22/00; jettisonable parts of fuselage facilitating emergency escape B64C)
Definition statement
This group covers:

Fire extinguishing

Safety airbags.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Fire prevention, containment or extinguishing

Parachutes

Jettisoning of fuel tanks

Protection against criminal attack

Safety belts or body harnesses in general

Safety belts or body harnesses for vehicles

Jettisonable parts of fuselage facilitating emergency escape

Supports or holding means for living bodies
Definition statement
This subgroup covers:

Restraining means for pilot's legs, head or arms in ejection seats.

Seat modifications
Definition statement
This subgroup covers:

Crashworthy seats

Adapted or integrated swimming vests.

Arrangement or mounting of power plant in aircraft; Aircraft characterised thereby (attitude, flight direction, or altitude control of aircraft by jet reaction B64C)
Definition statement
This group covers:

Elastomeric joints for mounting power plant

Accessories therefor.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Attitude, flight direction or altitude control of aircraft by jet reaction

Special rules of classification within this group

There will be an indexing system for the following:

Hybrid power plants, i.e. aircraft with two different types of power plant; e.g. electric and gas-turbine

Aircraft characterised by the type or position of power plant (fuselages or wings adapted for mounting power plant B64C)
Definition statement
This subgroup covers:

Particular disposition or arrangement of power plant in aircraft

Peculiar power plants.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Fuselages or wings adapted for mounting power plant

of piston type
Definition statement
This subgroup covers:

Structures for mounting piston type power plants in aircraft, independently of the position of the same.

within or attached to wing
Definition statement
This subgroup covers:

Structures for mounting piston type power plant at the wing of the aircraft.

within or attached to fuselage
Definition statement
This subgroup covers:

Structures for mounting piston type power plant at the fuselage of the aircraft.

of gas-turbine type (B64D 27/16 takes precedence)
Definition statement
This subgroup covers:

Structures for mounting turboprop type power plants in aircraft, independently of the position of the same.

within or attached to wing
Definition statement
This subgroup covers:

Structures for mounting turboprop type power plants at the wing of the aircraft.

within or attached to fuselage
Definition statement
This subgroup covers:

Structures for mounting turboprop type power plants at the fuselage of the aircraft.

of jet type
Definition statement
This subgroup covers:

Structures for mounting turbofan type power plants in aircraft, independently of the position of the same.

within or attached to wing
Definition statement
This subgroup covers:

Structures for mounting turbofan type power plants at the wing of the aircraft.

within or attached to fuselage
Definition statement
This subgroup covers:

Structures for mounting turbofan type power plants at the fuselage of the aircraft.

Aircraft characterised by construction of power-plant mounting
Definition statement
This subgroup covers:

Fail-safe attachments for mounting turbofan power plants to the supporting structure.

Special rules of classification within this group

There will be an indexing scheme for the following:

Box like attachments, e.g. to the wing pylon

Engine attachments for supporting vertical loads

Engine thrust links

Power-plant nacelles, fairings, or cowlings (nacelles not otherwise provided for B64C)
Definition statement
This group covers:

Fairings

Seals

Liners.

References relevant to classification in this group
This group does not cover:

Aerodynamic aspects of nacelles

associated with wings (wings adapted for mounting power plant B64C)
Definition statement
This subgroup covers:

Aerodynamic aspects of connection elements between engine nacelle and wing.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Wings adapted for mounting power plant

associated with fuselages
Definition statement
This subgroup covers:

Aerodynamic aspects of connection elements between engine nacelle and fuselage.

Attaching of nacelles, fairings or cowlings
Definition statement
This subgroup covers:

Operating mechanisms for cowlings or panels

Latches

Supports for thrust reversers.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Latches

Thrust reversers for turbine engines

Panels or cowls per se

Inspection panels for power plants
Definition statement
This subgroup covers:

Panels

Cowls.

References relevant to classification in this group
This subgroup does not cover:

Operating mechanisms for cowlings or panels

Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
Definition statement
This group covers:

Power plant starting systems.

of combustion air intakes (air intakes for gas-turbine plants or jet-propulsion plants per se F02C 7/04; air intakes for combustion engines in general F02M 35/00)
Definition statement
This subgroup covers:

Air intakes.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Air intakes for gas-turbine power plants or jet propulsion plants per se

Combustion engines in general

Special rules of classification within this group

There will be an indexing scheme for the following:

  • Air intake with acoustic liners for noise suppression
  • Air intake specially adapted for APU
  • Air intakes with bird ingestion protection
  • Air intakes with means for boundary layer control
  • Air intakes with means for avoiding icing
  • Air intakes with means to minimise infrared emissions
  • Air intakes of the NACA type for any purpose; e.g. ECS or avionics
  • Air intakes with particle separators
  • Air intakes for jet engines
  • Air intakes for piston engines
  • Air intakes for supersonic aircraft
  • Air intakes for turbofan engines
  • Air intakes for turboprop engines
Glossary of terms
In this subgroup, the following terms (or expressions) are used with the meaning indicated:

APU

Auxiliary Power Unit

ECS

Environmental Control System

of exhaust outlets or jet pipes (exhaust outlets for combustion engines in general F01N; jet pipes or nozzles for jet-propulsion plants per se F02K; plants characterised by the form or arrangement of the jet pipe or nozzle F02K {attitude, flight direction, or altitude control by jet reaction B64C})
Definition statement
This subgroup covers:

Exhaust outlets

Turbine exhaust nozzles.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Jet pipes or nozzles

Exhaust nozzles for combustion engines

Special rules of classification within this group

There will be an indexing scheme for the following:

Exhausts with means to reduce the infrared emission.

Arrangements in connection with fuel supply for power plant (refuelling during flight B64D 39/00)
Definition statement
This group covers:

Fuel supply systems

Gauging.

References relevant to classification in this group
This group does not cover:

Refuelling during flight

Informative references
Attention is drawn to the following places, which may be of interest for search:

Fuel tanks for vehicles

{Accessories not provided for in the groups B64D 37/02 - B64D 37/28}
Definition statement
This subgroup covers:

Plugs for fuel tanks

Other accessories for fuel supply.

Safety measures not otherwise provided for, e.g. preventing explosive conditions (extinguishing or preventing fires in aircraft A62C)
Definition statement
This subgroup covers:

Inerting systems

Fire extinguishing

Ram shock protection.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Extinguishing or preventing fires in aircraft

Special rules of classification within this group

There will be an indexing scheme for the following:

Fuel tanks with provisions for reducing hydraulic ram shocks due to projectile impact.

Refuelling during flight (filling or emptying fuel tanks B64D 37/14)
Definition statement
This group covers:

Controlling the position of the refuelling boom or hose.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Filling or emptying tanks

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Refuelling boom

rigid pipe for refuelling

Refuelling house

flexible house for refuelling; normally rolled on a reel

Means for paying-in or out hose
Definition statement
This subgroup covers:

Reels for refuelling hoses

Telescopic arrangements for refuelling booms.

Adaptations of hose construction (pipes in general F16L)
Definition statement
This subgroup covers:

Constructional details or accessories for refuelling booms or hoses.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Pipes in general

Connecting hose to aircraft; Disconnecting hose therefrom
Definition statement
This subgroup covers:

Valves for refuelling booms or hoses

Connection devices for booms or hoses

Connection devices for the receiving aircraft.

Power installations for auxiliary purposes
Definition statement
This group covers:

Mounting Auxiliary Power Units (APU) in aircraft.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Auxiliary Power Units (APU)

Special rules of classification within this group

There will be an indexing scheme for the following:

Disposition or mounting of APU in aircraft

Fuel cells used as APU.

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

APU

Auxiliary Power Unit

Arrangements or adaptations of instruments (arrangements of cameras B64D 47/08; aeronautical measuring instruments per se G01C)
Definition statement
This group covers:

Cockpit dashboards.

References relevant to classification in this group
This group does not cover:

Arrangement of cameras

Informative references
Attention is drawn to the following places, which may be of interest for search:

Aircraft instruments

Head Up Displays (HUD)

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

HUD

Head Up Display

for indicating aircraft speed or stalling conditions
Definition statement
This subgroup covers:

Arrangement of Pitot tubes.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Flight data probes

Aircraft indicators or protectors not otherwise provided for (camouflage F41H 3/00)
Definition statement
This group covers:

Mounting and arrangements of crash recorders

Miscellaneous indicators.

References relevant to classification in this group
This group does not cover:

Stealth or armoured structures

Informative references
Attention is drawn to the following places, which may be of interest for search:

Crash recorders casings

Camouflage

Special rules of classification within this group

There will be an indexing scheme for the following:

Systems for avoiding bird strikes (air intakes excluded)

Mounting of crash recorders, automatic mayday signalling, flight data recording

Cabin signs; e.g. seat number or exit lights or signs

Supports in the cockpit for flight bags; e.g. supports for electronic tablets used as flight bags

Indicators for detecting or indicating a hard landing

Failure detection means, e.g. for flutter, vibration, etc.

Fire and erosion protectors.

Synonyms and Keywords

In patent documents the following expressions expressions/words "crash recorder" and "black box" are often used as synonyms.

{Devices specially adapted to indicate the position of a movable element of the aircraft, e.g. landing gear}
Definition statement
This subgroup covers:

Asymmetric flap detection systems

Landing gear deployment detection systems.

{Devices specially adapted for the protection against criminal attack, e.g. anti-hijacking systems}
Definition statement
This subgroup covers:

Protection systems against hijacking.

Special rules of classification within this group

There will be an indexing scheme for the following:

Security communications, e.g. for communicating emergency situations to ground traffic control or between crew members

Bomb detection systems for cabins or luggage

Blocking pilot's control and directing aircraft from the ground avoiding particular air space zones

Preventing the use of electronic equipment during flight, e.g. use of GSM's

Restraining passengers within seats or particular zones; compartmenting cabins for this purpose.

Detecting passenger or pilot behaviour by sensors, identification means or biometric data.

Lightning protectors; Static dischargers (in general H01T)
Definition statement
This subgroup covers:

Conductive rivets

Making composite structures conductive.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Lightning protectors in general

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013