|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

|  | B01 - B07 |
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/LIQUID OR SOLID/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/SOLID SEPARATION |
Method |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B07B
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B
Apparatus |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B04B, B04C
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B

TRANSPORTING

|  | B64 |
AIRCRAFT; AVIATION; COSMONAUTICS

|  | B64D |
EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS

|  | B64D |
Subclass index
FLIGHT ARRANGEMENTS ON AIRCRAFT |
Of power plant and auxiliaries | 27/00, 29/00, 33/00, 41/00
Of power-plant controls and transmissions | 31/00, 35/00
For fuel supply | 37/00, 39/00
Of flying instruments | 43/00
USE OF AIRCRAFT |
For military purposes | 1/00, 7/00
For persons or freight | 9/00 - 13/00
SAFETY OR EMERGENCY ARRANGEMENTS OR EQUIPMENTS |
For the aircraft |
against icing; against lightning | 15/00; 45/02
for landing | 17/80, 45/00
For jettisoning or other means concerning fuel | 37/26, 37/32
For persons or material |
by holding or ejecting means | 25/00
by parachutes; parachuting | 17/00 - 21/00; 23/00
Other safety, emergency, or protection means | 10/00, 25/00, 45/00
EQUIPMENT FOR OPERATIONS PERFORMED DURING FLIGHT |
Releasing or receiving articles, fluent materials, or another aircraft | 1/00, 5/00
Towing, fuel replenishing | 3/00, 39/00
OTHER ARRANGEMENTS OR EQUIPMENT | 47/00

P:160 |  | B64D 1/00 |
Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight (with respect to weapon sights, Fulltext... Hierarchy... Expanded...F41G takes precedence; parachutes Fulltext... Hierarchy... Expanded...B64D 17/00; ejectable seats Fulltext... Hierarchy... Expanded...B64D 25/10; ejectable capsules Fulltext... Hierarchy... Expanded...B64D 25/12; refuelling during flight Fulltext... Hierarchy... Expanded...B64D 39/00; launching apparatus for projecting projectiles or missiles Fulltext... Hierarchy... Expanded...F41F 1/00, Fulltext... Hierarchy... Expanded...F41F 7/00; rocket or torpedo launchers Fulltext... Hierarchy... Expanded...F41F 3/00)

|  | B64D 1/02 |
· | Dropping, ejecting, or releasing articles (jettisonable fuel reservoirs Fulltext... Hierarchy... Expanded...B64D 37/12)

|  | B64D 1/04 |
· · | the articles being explosive, e.g. bombs (arming or setting bomb fuzes Fulltext... Hierarchy... Expanded...F42C)

|  | B64D 1/06 |
· · · | Bomb releasing; Bomb doors

|  | B64D 1/08 |
· · | the articles being load-carrying devices

|  | B64D 1/10 |
· · · | Stowage arrangements for the devices in aircraft

|  | B64D 1/12 |
· · · | Releasing

|  | B64D 1/14 |
· · · | Absorbing landing shocks

|  | B64D 1/16 |
· | Dropping or releasing powdered, liquid or gaseous matter, e.g. for fire-fighting (jettisoning fuel Fulltext... Hierarchy... Expanded...B64D 37/26) [5]

|  | B64D 1/18 |
· · | by spraying, e.g. insecticides (spraying apparatus in general Fulltext... Hierarchy... Expanded...B05B)

|  | B64D 1/20 |
· · | for sky-writing

|  | B64D 1/22 |
· | Taking-up articles from earth's surface

P:130 |  | B64D 3/00 |
Aircraft adaptations to facilitate towing or being towed (Fulltext... Hierarchy... Expanded...B64D 39/00 takes precedence; ground installations for launching or towing aircraft Fulltext... Hierarchy... Expanded...B64F; towing ropes per se Fulltext... Hierarchy... Expanded...D07B)

|  | B64D 3/02 |
· | for towing targets (towed targets per se Fulltext... Hierarchy... Expanded...F41J)

P:140 |  | B64D 5/00 |
Aircraft transported by aircraft, e.g. for release or reberthing during flight (flying units formed by separate aircraft Fulltext... Hierarchy... Expanded...B64C 37/02)

P:170 |  | B64D 7/00 |
Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft (dropping bombs or the like Fulltext... Hierarchy... Expanded...B64D 1/00; armaments or mountings therefor per se Fulltext... Hierarchy... Expanded...F41)

|  | B64D 7/02 |
· | the armaments being firearms

|  | B64D 7/04 |
· · | fixedly mounted

|  | B64D 7/06 |
· · | movably mounted

|  | B64D 7/08 |
· | Arrangement of rocket launchers (rocket launchers per se, e.g. rocket pods, Fulltext... Hierarchy... Expanded...F41F 3/06)

P:220 |  | B64D 9/00 |
Equipment for handling freight; Equipment for facilitating passenger embarkation or the like (emergency equipment Fulltext... Hierarchy... Expanded...B64D 17/00, Fulltext... Hierarchy... Expanded...B64D 19/00, Fulltext... Hierarchy... Expanded...B64D 25/00; structures integral with fuselage to facilitate loading, fuselage floors specially adapted for freight, steps mounted on, and retractable within, aircraft Fulltext... Hierarchy... Expanded...B64C; ground installations Fulltext... Hierarchy... Expanded...B64F)

P:0 |  | B64D 10/00 |
Flying suits (helmets in general Fulltext... Hierarchy... Expanded...A42B 3/00; breathing helmets Fulltext... Hierarchy... Expanded...A62B 18/00) [3]

P:230 |  | B64D 11/00 |
Passenger or crew accommodation; Flight-deck installations not otherwise provided for

|  | B64D 11/02 |
· | Toilet fittings (of general application Fulltext... Hierarchy... Expanded...A47K)

|  | B64D 11/04 |
· | Galleys

|  | B64D 11/06 |
· | Arrangements or adaptations of seats (seat constructions for emergency purposes Fulltext... Hierarchy... Expanded...B64D 25/04)

P:180 |  | B64D 13/00 |
Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space (treatment rooms with artificial climate for medical purposes Fulltext... Hierarchy... Expanded...A61G 10/02; respiratory apparatus in general Fulltext... Hierarchy... Expanded...A62B; for vehicles in general Fulltext... Hierarchy... Expanded...B60H)

|  | B64D 13/02 |
· | the air being pressurised

|  | B64D 13/04 |
· · | Automatic control of pressure

|  | B64D 13/06 |
· | the air being conditioned (pressurising Fulltext... Hierarchy... Expanded...B64D 13/02)

|  | B64D 13/08 |
· · | the air being heated or cooled

P:150 |  | B64D 15/00 |
De-icing or preventing icing on exterior surfaces of aircraft (motor vehicles specially adapted for carrying de-icing equipment Fulltext... Hierarchy... Expanded...B60P)

|  | B64D 15/02 |
· | by ducted hot gas or liquid

|  | B64D 15/04 |
· · | Hot gas application

|  | B64D 15/06 |
· · | Liquid application (in general Fulltext... Hierarchy... Expanded...B05)

|  | B64D 15/08 |
· · · | exuded from surface

|  | B64D 15/10 |
· · · | sprayed over surface

|  | B64D 15/12 |
· | by electric heating (Fulltext... Hierarchy... Expanded...H05B 3/84 takes precedence; electric heating elements in general Fulltext... Hierarchy... Expanded...H05B) [5]

|  | B64D 15/14 |
· · | controlled cyclically along length of surface

|  | B64D 15/16 |
· | by mechanical means, e.g. pulsating mats or shoes attached to, or built into, surface

|  | B64D 15/18 |
· · | the surface being an aerofoil, rotor, or propeller

|  | B64D 15/20 |
· | Means for detecting icing or initiating de-icing

|  | B64D 15/22 |
· · | Automatic initiation by icing detector

P:40 |  | B64D 17/00 |
Parachutes (non-canopied parachutes Fulltext... Hierarchy... Expanded...B64D 19/00)

|  | B64D 17/02 |
· | Canopy arrangement or construction

|  | B64D 17/04 |
· · | formed with two or more canopies arranged about a common axis

|  | B64D 17/06 |
· · | formed with two or more canopies arranged in a cluster

|  | B64D 17/08 |
· · | Secondary or shock-absorbing canopies attached to load line

|  | B64D 17/10 |
· · | Ribbon construction or the like

|  | B64D 17/12 |
· · | constructed to provide variable or non-uniform porosity over area of canopy

|  | B64D 17/14 |
· · | with skirt or air-deflecting panels

|  | B64D 17/16 |
· · · | secured to hem of main canopy

|  | B64D 17/18 |
· · | Vent arrangement or construction

|  | B64D 17/20 |
· · · | variable in area

|  | B64D 17/22 |
· | Load suspension

|  | B64D 17/24 |
· · | Rigging lines

|  | B64D 17/26 |
· · · | attached to hem of canopy

|  | B64D 17/28 |
· · · | attached to apex of canopy

|  | B64D 17/30 |
· · | Harnesses [4]

|  | B64D 17/32 |
· · · | Construction of quick-release box

|  | B64D 17/34 |
· · | adapted to control direction or rate of descent

|  | B64D 17/36 |
· · | incorporating friction devices or frangible connections to reduce shock loading of canopy

|  | B64D 17/38 |
· · | Releasable fastening devices between parachute and load or pack

|  | B64D 17/40 |
· | Packs

|  | B64D 17/42 |
· · | rigid

|  | B64D 17/44 |
· · · | forming part of load

|  | B64D 17/46 |
· · | Closing means

|  | B64D 17/48 |
· · | with separate pack for extractor of auxiliary parachute

|  | B64D 17/50 |
· · | formed with separate compartments for main canopy, rigging lines, or auxiliary parachute

|  | B64D 17/52 |
· · | Opening, e.g. manual

|  | B64D 17/54 |
· · · | automatic

|  | B64D 17/56 |
· · · · | responsive to barometric pressure

|  | B64D 17/58 |
· · · · | responsive to time-delay mechanism

|  | B64D 17/60 |
· · · · | by static line

|  | B64D 17/62 |
· | Deployment

|  | B64D 17/64 |
· · | by extractor parachute

|  | B64D 17/66 |
· · · | attached to hem of main canopy

|  | B64D 17/68 |
· · · | attached to apex of main canopy

|  | B64D 17/70 |
· · | by springs

|  | B64D 17/72 |
· · | by explosive or inflatable means (connection of valves to inflatable elastic bodies Fulltext... Hierarchy... Expanded...B60C 29/00)

|  | B64D 17/74 |
· · | Sequential deployment of a plurality of canopies

|  | B64D 17/76 |
· · | facilitated by method of folding or packing

|  | B64D 17/78 |
· | in association with other load-retarding apparatus

|  | B64D 17/80 |
· | in association with aircraft, e.g. for braking thereof

P:30 |  | B64D 19/00 |
Non-canopied parachutes

|  | B64D 19/02 |
· | Rotary-wing parachutes

P:20 |  | B64D 21/00 |
Testing of parachutes

P:10 |  | B64D 23/00 |
Training of parachutists

P:210 |  | B64D 25/00 |
Emergency apparatus or devices, not otherwise provided for (parachutes Fulltext... Hierarchy... Expanded...B64D 17/00, Fulltext... Hierarchy... Expanded...B64D 19/00; jettisoning of fuel tanks or fuel Fulltext... Hierarchy... Expanded...B64D 37/00; safety belts or body harnesses in general Fulltext... Hierarchy... Expanded...A62B 35/00; safety belts or body harnesses for land vehicles Fulltext... Hierarchy... Expanded...B60R 22/00; severable or jettisonable parts of fuselage facilitating emergency escape Fulltext... Hierarchy... Expanded...B64C) [4]

|  | B64D 25/02 |
· | Supports or holding means for living bodies (for ejector seats Fulltext... Hierarchy... Expanded...B64D 25/115) [5]

|  | B64D 25/04 |
· · | Seat modifications

|  | B64D 25/06 |
· · | Harnessing [4]

|  | B64D 25/08 |
· | Ejecting or escaping means (escape apertures Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 25/10 |
· · | Ejector seats

|  | B64D 25/102 |
· · · | Propelling means, e.g. by a combination of catapult and rocket means (Fulltext... Hierarchy... Expanded...B64D 25/11, Fulltext... Hierarchy... Expanded...B64D 25/112 take precedence) [5]

|  | B64D 25/105 |
· · · · | by catapult means only [5]

|  | B64D 25/108 |
· · · · | by rocket means only [5]

|  | B64D 25/11 |
· · · | Controlling attitude or direction of ejector seat or associated mechanism prior to ejection [5]

|  | B64D 25/112 |
· · · | Controlling attitude or direction of ejector seat after ejection [5]

|  | B64D 25/115 |
· · · | Occupant restraining, positioning or protecting devices [5]

|  | B64D 25/118 |
· · · | Separation of occupant from seat after ejection [5]

|  | B64D 25/12 |
· · | Ejectable capsules

|  | B64D 25/14 |
· · | Inflatable escape chutes (connection of valves to inflatable elastic bodies Fulltext... Hierarchy... Expanded...B60C 29/00)

|  | B64D 25/16 |
· · | Dinghy stowage

|  | B64D 25/18 |
· · | Flotation gear (aircraft alighting gear Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 25/20 |
· · | Releasing of crash-position indicators

P:70 |  | B64D 27/00 |
Arrangement or mounting of power plant in aircraft; Aircraft characterised thereby (attitude, flight- direction, or altitude control of aircraft by jet reaction Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 27/02 |
· | Aircraft characterised by the type or position of power plant (fuselages or wings adapted for mounting power plant Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 27/04 |
· · | of piston type

|  | B64D 27/06 |
· · · | within, or attached to, wing

|  | B64D 27/08 |
· · · | within, or attached to, fuselage

|  | B64D 27/10 |
· · | of gas-turbine type (Fulltext... Hierarchy... Expanded...B64D 27/16 takes precedence)

|  | B64D 27/12 |
· · · | within, or attached to, wing

|  | B64D 27/14 |
· · · | within, or attached to, fuselage

|  | B64D 27/16 |
· · | of jet type

|  | B64D 27/18 |
· · · | within, or attached to, wing

|  | B64D 27/20 |
· · · | within, or attached to, fuselage

|  | B64D 27/22 |
· · | using atomic energy

|  | B64D 27/24 |
· · | using steam, electricity, or spring force (Fulltext... Hierarchy... Expanded...B64D 27/16 takes precedence)

|  | B64D 27/26 |
· | Aircraft characterised by construction of power-plant mounting

P:110 |  | B64D 29/00 |
Power-plant nacelles, fairings, or cowlings (nacelles not otherwise provided for Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 29/02 |
· | associated with wings (wings adapted for mounting power plant Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 29/04 |
· | associated with fuselages

|  | B64D 29/06 |
· | Attaching of nacelles, fairings, or cowlings

|  | B64D 29/08 |
· | Inspection panels for power plants

P:60 |  | B64D 31/00 |
Power plant control; Arrangement thereof (flying controls, conjoint control of power plant and propeller Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 31/02 |
· | Initiating means

|  | B64D 31/04 |
· · | actuated personally

|  | B64D 31/06 |
· · | actuated automatically

|  | B64D 31/08 |
· · · | for keeping cruising speed constant

|  | B64D 31/10 |
· · · | for preventing asymmetric thrust upon failure of one power plant

|  | B64D 31/12 |
· · · | for equalising or synchronising power plants

|  | B64D 31/14 |
· | Transmitting means between initiating means and power plants

P:120 |  | B64D 33/00 |
Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for

|  | B64D 33/02 |
· | of combustion air intakes (air intakes for gas-turbine plants or jet-propulsion plants per se Fulltext... Hierarchy... Expanded...F02C 7/04; air intakes for combustion engines in general Fulltext... Hierarchy... Expanded...F02M 35/00)

|  | B64D 33/04 |
· | of exhaust outlets or jet pipes (exhaust outlets for combustion engines in general Fulltext... Hierarchy... Expanded...F01N; jet pipes or nozzles for jet-propulsion plants per se Fulltext... Hierarchy... Expanded...F02K; plants characterised by the form or arrangement of the jet pipe or nozzle Fulltext... Hierarchy... Expanded...F02K) [3]

|  | B64D 33/08 |
· | of power plant cooling systems (cooling of internal-combustion engines per se Fulltext... Hierarchy... Expanded...F01P; cooling of gas-turbine plants or jet-propulsion plants per se Fulltext... Hierarchy... Expanded...F02C, Fulltext... Hierarchy... Expanded...F02K)

|  | B64D 33/10 |
· · | Radiator arrangement

|  | B64D 33/12 |
· · · | of retractable type

P:80 |  | B64D 35/00 |
Transmitting power from power plant to propellers or rotors; Arrangements of transmissions (propellers or rotors per se, helicopter transmissions Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 35/02 |
· | characterised by the type of power plant

|  | B64D 35/04 |
· | characterised by the transmission driving a plurality of propellers or rotors

|  | B64D 35/06 |
· · | the propellers or rotors being counter-rotating

|  | B64D 35/08 |
· | characterised by the transmission being driven by a plurality of power plants

P:90 |  | B64D 37/00 |
Arrangements in connection with fuel supply for power plant (refuelling during flight Fulltext... Hierarchy... Expanded...B64D 39/00)

|  | B64D 37/02 |
· | Tanks (tanks constructed integrally with aircraft wings Fulltext... Hierarchy... Expanded...B64C; tanks in general Fulltext... Hierarchy... Expanded...B65D)

|  | B64D 37/04 |
· · | Arrangement thereof in or on aircraft

|  | B64D 37/06 |
· · | Constructional adaptations thereof

|  | B64D 37/08 |
· · · | Internal partitioning

|  | B64D 37/10 |
· · · | to facilitate fuel pressurisation

|  | B64D 37/12 |
· · · | jettisonable

|  | B64D 37/14 |
· · | Filling or emptying (transferring fuels to adjust aircraft trim Fulltext... Hierarchy... Expanded...B64C)

|  | B64D 37/16 |
· · · | Filling systems (ground installations for fuelling aircraft Fulltext... Hierarchy... Expanded...B64F)

|  | B64D 37/18 |
· · · · | Conditioning fuel during filling

|  | B64D 37/20 |
· · · | Emptying systems

|  | B64D 37/22 |
· · · · | facilitating emptying in any position of tank

|  | B64D 37/24 |
· · · · | using gas pressure

|  | B64D 37/26 |
· · · · | Jettisoning of fuel

|  | B64D 37/28 |
· · · · | Control thereof

|  | B64D 37/30 |
· | Fuel systems for specific fuels

|  | B64D 37/32 |
· | Safety measures not otherwise provided for, e.g. preventing explosive conditions (extinguishing or preventing fires in aircraft Fulltext... Hierarchy... Expanded...A62C)

|  | B64D 37/34 |
· | Conditioning fuel, e.g. heating (during filling Fulltext... Hierarchy... Expanded...B64D 37/18)

P:50 |  | B64D 39/00 |
Refuelling during flight (filling or emptying fuel tanks Fulltext... Hierarchy... Expanded...B64D 37/14)

|  | B64D 39/02 |
· | Means for paying-in or out hose

|  | B64D 39/04 |
· | Adaptations of hose construction (pipes in general Fulltext... Hierarchy... Expanded...F16L)

|  | B64D 39/06 |
· | Connecting hose to aircraft; Disconnecting hose therefrom

P:100 |  | B64D 41/00 |
Power installations for auxiliary purposes

P:190 |  | B64D 43/00 |
Arrangements or adaptations of instruments (arrangements of cameras Fulltext... Hierarchy... Expanded...B64D 47/08; aeronautical measuring instruments per se Fulltext... Hierarchy... Expanded...G01C)

|  | B64D 43/02 |
· | for indicating aircraft speed or stalling conditions

P:200 |  | B64D 45/00 |
Aircraft indicators or protectors not otherwise provided for (camouflage Fulltext... Hierarchy... Expanded...F41H 3/00)

|  | B64D 45/02 |
· | Lightning protectors (lightning arrestors Fulltext... Hierarchy... Expanded...H01C 7/12, Fulltext... Hierarchy... Expanded...H01C 8/04, Fulltext... Hierarchy... Expanded...H01G 9/18, Fulltext... Hierarchy... Expanded...H01T; circuit arrangements therefor Fulltext... Hierarchy... Expanded...H02H); Static dischargers (in general Fulltext... Hierarchy... Expanded...H05F 3/00)

|  | B64D 45/04 |
· | Landing aids; Safety measures to prevent collision with earth's surface

|  | B64D 45/06 |
· · | mechanical

|  | B64D 45/08 |
· · | optical

P:240 |  | B64D 47/00 |
Equipment not otherwise provided for

|  | B64D 47/02 |
· | Arrangements or adaptations of signal or lighting devices

|  | B64D 47/04 |
· · | the lighting devices being primarily intended to illuminate the way ahead

|  | B64D 47/06 |
· · | for indicating aircraft presence

|  | B64D 47/08 |
· | Arrangements of cameras