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
 B64C
AEROPLANES; HELICOPTERS (air-cushion vehicles B60V)
 B64C

Note(s)

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]

 B64C
Subclass index
STRUCTURES, FAIRINGS
Features common to different elements 1/00
Fuselages; wings; stabilising surfaces 1/00; 3/00; 5/00
Other structural elements 7/00
PROPELLERS, FLIGHT CONTROL
Propellers 11/00
Adjustable control surfaces or members; control systems 9/00; 13/00
Control by jet reaction 15/00
Stabilisation and controls not otherwise provided for 17/00, 19/00
MODIFYING LIFT BY ACTION ON AIR-FLOW 13/00, 21/00, 23/00
ALIGHTING GEAR 25/00
AIRCRAFT KINDS AND THEIR COMPONENTS NOT OTHERWISE PROVIDED FOR
Supersonic 30/00
Seaplanes 35/00
Aircraft intended to be sustained without power plant; powered hand-glider-type aircraft; microlight aircraft 31/00
Convertible aircraft 37/00
Vertical-take-off or landing aircraft 29/00
Rotorcraft; ornithopters 27/00; 33/00
Others 39/00
 B64C 1/00 - 
B64C 7/00
Aircraft structures or fairings (boundary-layer controls B64C 21/00)
P:70 B64C 1/00
Fuselages; Constructional features common to fuselages, wings, stabilising surfaces, or the like (aerodynamical features common to fuselages, wings, stabilising surfaces, or the like B64C 23/00; fairings movable in conjunction with undercarriage elements B64C 25/00; flight-deck installations B64D; bomb doors B64D 1/00)
P:80 B64C 3/00
Wings (attaching wing unit to fuselage B64C 1/00; stabilising surfaces B64C 5/00; ornithopter wings B64C 33/00)
P:60 B64C 5/00
Stabilising surfaces (attaching stabilising surfaces to fuselage B64C 1/00)
P:120 B64C 7/00
Structures or fairings not otherwise provided for
   
P:90 B64C 9/00
Adjustable control surfaces or members, e.g. rudders (varying camber of wings B64C 3/00; trimming stabilising surfaces B64C 5/00; systems for actuating flying-control surfaces B64C 13/00; boundary-layer control B64C 21/00)
P:100 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)
P:0 B64C 13/00
Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
P:20 B64C 15/00
Attitude, flight direction, or altitude control by jet reaction (jet flaps B64C 9/00; details of jet-engine plants, e.g. of nozzles or jet pipes, F02K)  [3]
P:40 B64C 17/00
Aircraft stabilisation not otherwise provided for
P:50 B64C 19/00
Aircraft control not otherwise provided for
 B64C 21/00 - 
B64C 23/00
Influencing air-flow over aircraft surfaces, not otherwise provided for
P:10 B64C 21/00
Influencing air-flow over aircraft surfaces by affecting boundary-layer flow (boundary-layer control in general F15D)
P:30 B64C 23/00
Influencing air-flow over aircraft surfaces, not otherwise provided for
   
P:110 B64C 25/00
Alighting gear (air-cushion alighting gear B60V 3/00)
 B64C 27/00 - 
B64C 39/00
Aircraft kinds or components not otherwise provided for
P:170 B64C 27/00
Rotorcraft; Rotors peculiar thereto (alighting gear B64C 25/00)
 B64C 27/32
·  Rotors (features common to rotors and propellers B64C 11/00)
P:180 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; details of jet-engine plants, e.g. of nozzles or jet pipes, F02K)
P:190 B64C 30/00
Supersonic type aircraft  [3]
P:140 B64C 31/00
Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
P:150 B64C 33/00
Ornithopters
P:160 B64C 35/00
Flying-boats; Seaplanes (alighting gear B64C 25/00)
P:130 B64C 37/00
Convertible aircraft (vehicles capable of travelling in or on different media B60F)
P:200 B64C 39/00
Aircraft not otherwise provided for