B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
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; 45/00
for landing 17/00, 45/00
For jettisoning or other means concerning fuel 37/00
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, F41G takes precedence; parachutes B64D 17/00; ejectable seats B64D 25/00; ejectable capsules B64D 25/00; jettisonable fuel reservoirs B64D 37/00; refuelling during flight B64D 39/00; launching apparatus for projecting projectiles or missiles F41F 1/00, F41F 7/00; rocket or torpedo launchers F41F 3/00)
P:130 B64D 3/00
Aircraft adaptations to facilitate towing or being towed (B64D 39/00 takes precedence; ground installations for launching or towing aircraft B64F; towing ropes per se D07B)
P:140 B64D 5/00
Aircraft transported by aircraft, e.g. for release or reberthing during flight (flying units formed by separate aircraft B64C 37/00)
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 B64D 1/00; armaments or mountings therefor per se F41)
P:220 B64D 9/00
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)
P:0 B64D 10/00
Flying suits (helmets in general A42B 3/00; breathing helmets A62B 18/00)  [3]
P:230 B64D 11/00
Passenger or crew accommodation; Flight-deck installations not otherwise provided for (seat constructions for emergency purposes B64D 25/00)
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 A61G 10/00; respiratory apparatus in general A62B; for vehicles in general B60H)
P:150 B64D 15/00
De-icing or preventing icing on exterior surfaces of aircraft (motor vehicles specially adapted for carrying de-icing equipment B60P)
P:40 B64D 17/00
Parachutes (non-canopied parachutes B64D 19/00)
P:30 B64D 19/00
Non-canopied 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 B64D 17/00, B64D 19/00; jettisoning of fuel tanks or fuel B64D 37/00; safety belts or body harnesses in general A62B 35/00; safety belts or body harnesses for land vehicles B60R 22/00; severable or jettisonable parts of fuselage facilitating emergency escape B64C)  [4]
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 B64C)
P:110 B64D 29/00
Power-plant nacelles, fairings, or cowlings (nacelles not otherwise provided for B64C)
P:60 B64D 31/00
Power plant control; Arrangement thereof (flying controls, conjoint control of power plant and propeller B64C)
P:120 B64D 33/00
Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
P:80 B64D 35/00
Transmitting power from power plant to propellers or rotors; Arrangements of transmissions (propellers or rotors per se, helicopter transmissions B64C)
P:90 B64D 37/00
Arrangements in connection with fuel supply for power plant (refuelling during flight B64D 39/00; tanks constructed integrally with aircraft wings or transferring fuels to adjust aircraft trim B64C; ground installations for fuelling aircraft B64F; tanks in general B65D)
P:50 B64D 39/00
Refuelling during flight (filling or emptying fuel tanks B64D 37/00)
P:100 B64D 41/00
Power installations for auxiliary purposes
P:190 B64D 43/00
Arrangements or adaptations of instruments (arrangements of cameras B64D 47/00; aeronautical measuring instruments per se G01C)
P:200 B64D 45/00
Aircraft indicators or protectors not otherwise provided for (camouflage F41H 3/00; lightning arrestors H01C 7/00, H01C 8/00, H01G 9/18, H01T)
P:240 B64D 47/00
Equipment not otherwise provided for