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
  
PRINTING
 B43
WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
 B43K
IMPLEMENTS FOR WRITING OR DRAWING (containers, casings or accessories for cosmetic substances, e.g. shaving soap, lipstick, make-up, A45D 34/00, A45D 40/00)
 B43K

Note(s)

In this subclass, the following expression is used with the meaning indicated:  [6]

  • "writing implements" covers pens, pencils, crayons, chalks or like markers for writing or drawing.  [6]

 B43K
Subclass index
IMPLEMENTS WITH CORES
Without mechanisms 19/00
With mechanisms 21/00
Accessories 23/00, 25/00
IMPLEMENTS USING INK
Without reservoir 3/00
With reservoir 5/00, 7/00, 8/00
Nibs; filling devices; caps 1/00, 17/00; 11/00; 23/00
Manufacture, maintenance 13/00, 15/00
SELECTING, PROJECTING, RETRACTING OR LOCKING WRITING UNITS 24/00
MULTIPLE-POINT WRITING IMPLEMENTS 27/00
COMBINATIONS
Of writing implements with other articles 29/00, 31/00
P:110 B43K 1/00
Nibs (continuously-adjustable nibs B43K 17/00); Writing- points (for indicating or recording apparatus G01D 15/16)  [2]
 B43K 1/01
·  with ink reservoirs, e.g. funnel-shaped  [6]
 B43K 1/02
·  Split nibs
 B43K 1/04
·  ·  with broadened tips
 B43K 1/06
·  Tubular writing-points
 B43K 1/08
·  with ball points; Balls or ball beds
 B43K 1/10
·  Wire nibs
 B43K 1/12
·  Writing-points comprising fibres; Felt pads
P:120 B43K 3/00
Nib holders (holders for continuously-adjustable nibs B43K 17/00)
 B43K 3/02
·  with ink guards
 B43K 3/04
·  with retractable nibs (mechanisms for retracting or locking nibs B43K 24/00)
P:80 B43K 5/00
Pens with ink reservoirs in holders, e.g. fountain-pens (nibs or writing-points with ink reservoirs B43K 1/01; ball-point pens B43K 7/00; pens with writing-points other than nibs or balls B43K 8/00; multiple-point writing implements B43K 27/00)
 B43K 5/02
·  Ink reservoirs
 B43K 5/03
·  ·  specially adapted for concentrated ink, e.g. solid ink  [6]
 B43K 5/04
·  ·  flexible
 B43K 5/06
·  ·  with movable pistons
 B43K 5/08
·  ·  ·  with ink-supplying valves
 B43K 5/10
·  ·  with reserve ink chambers
 B43K 5/12
·  ·  with ink-level inspection means
 B43K 5/14
·  ·  Exchangeable ink cartridges
 B43K 5/16
·  with retractable nibs (mechanisms for retracting or locking nibs B43K 24/00)
 B43K 5/17
·  ·  with closing means  [6]
 B43K 5/18
·  Arrangements for feeding the ink to the nibs
P:70 B43K 7/00
Ball-point pens (multiple-point writing implements B43K 27/00)
 B43K 7/01
·  for low viscosity liquid ink  [6]
 B43K 7/02
·  Ink reservoirs; Ink cartridges (B43K 7/01 takes precedence)  [6]
 B43K 7/03
·  ·  pressurised, e.g. by gas  [5]
 B43K 7/035
·  ·  ·  the gas acting on a piston  [6]
 B43K 7/04
·  ·  Arrangements for refilling the reservoirs, e.g. arrangements at the ball-point ends
 B43K 7/06
·  ·  Reservoirs with ink-level inspection means
 B43K 7/08
·  ·  Preventing leakage
 B43K 7/10
·  Arrangements for feeding the ink to the ball points (B43K 7/01 takes precedence)  [6]
 B43K 7/12
·  with retractable ball points (mechanisms for retracting or locking ball points B43K 24/00)
P:60 B43K 8/00
Pens with writing-points other than nibs or balls (brushes with reservoir for supplying substances A46B 11/00)
 B43K 8/02
·  with writing-points comprising fibres, felt, or similar porous or capillary material (B43K 8/22 takes precedence)  [2,5]
 B43K 8/03
·  ·  Ink reservoirs; Ink cartridges  [6]
 B43K 8/04
·  ·  Arrangements for feeding ink to writing-points  [5]
 B43K 8/06
·  ·  ·  Wick feed from within reservoir to writing-points  [5]
 B43K 8/08
·  ·  ·  ·  Wick separate from writing-points  [5]
 B43K 8/10
·  ·  ·  including compartment for soluble solid material  [5]
 B43K 8/12
·  ·  ·  writing-points or writing-point units being separable from reservoir  [5]
 B43K 8/14
·  with coreless tubular writing-points  [5]
 B43K 8/16
·  with tubular writing-points comprising a movable cleaning element  [5]
 B43K 8/18
·  ·  Arrangements for feeding the ink to the writing-points  [5]
 B43K 8/20
·  with roller writing-points  [5]
 B43K 8/22
·  with electrically or magnetically activated writing-points  [5]
 B43K 8/24
·  characterised by the means for retracting writing-points  [5]
P:140 B43K 11/00
Filling devices (ink receptacles B43L 25/00)
P:130 B43K 13/00
Devices for removing nibs; Devices for cleaning nibs, e.g. by wiping (ink receptacles with pen-wiping means B43L 25/12)  [3]
 B43K 13/02
·  for cleaning nibs, e.g. ink reservoirs therein  [6]
P:160 B43K 15/00
Assembling, finishing, or repairing pens
 B43K 15/02
·  Automatic machines
P:100 B43K 17/00
Continuously-adjustable nibs, e.g. for drawing-pens; Holders therefor (features common to fountain-pens B43K 5/00)
 B43K 17/01
·  Nibs with ink reservoirs  [6]
 B43K 17/02
·  Nibs having more than two legs
 B43K 17/04
·  Holders with arrangements for drawing dotted lines
P:50 B43K 19/00
Non-propelling pencils; Styles; Crayons; Chalks (batik pencils, cord line chalkers B44D 3/00; writing-core compositions for pencils, crayon compositions, chalk compositions C09D 13/00)  [2]
 B43K 19/02
·  Pencils with graphite; Coloured pencils
 B43K 19/04
·  Pencils with metallic writing-core
 B43K 19/06
·  ·  the writing-core being made from substance wearing off during use
 B43K 19/08
·  ·  the writing-core being made from wear-resistant substances
 B43K 19/10
·  ·  ·  equipped with ball point (using ink B43K 1/08, B43K 7/00)
 B43K 19/12
·  Slate pencils
 B43K 19/14
·  Sheathings
 B43K 19/16
·  Making non-propelling pencils (making slate-pencil writing-cores B28D)
 B43K 19/18
·  ·  Making pencil writing-cores
P:40 B43K 21/00
Propelling pencils (projecting mechanisms for writing units B43K 24/00; multiple-point writing implements B43K 27/00)
 B43K 21/02
·  Writing-core feeding mechanisms
 B43K 21/027
·  ·  with sliding tube-like writing-core guide  [5]
 B43K 21/033
·  ·  ·  with automatic feed by pressure during use of pencil  [5]
 B43K 21/04
·  ·  with the writing-cores brought into position by gravity
 B43K 21/06
·  ·  with the writing-cores fed by means sliding in longitudinally-slotted casings
 B43K 21/08
·  ·  with the writing-cores fed by screws
 B43K 21/10
·  ·  ·  with separate writing-core remnants ejecting-bar
 B43K 21/12
·  ·  ·  with means preventing overwinding
 B43K 21/14
·  ·  ·  with writing-cores automatically replaced from magazines
 B43K 21/16
·  ·  with stepwise feed of writing-cores
 B43K 21/18
·  ·  ·  having ratchet means
 B43K 21/20
·  ·  ·  with writing-cores automatically replaced from magazines
 B43K 21/22
·  ·  Writing-cores gripping means, e.g. chucks
 B43K 21/24
·  Assembling, finishing, or repairing propelling pencils (making pencil writing-cores B43K 19/18)
 B43K 21/26
·  ·  Automatic machines
P:150 B43K 23/00
Holders or connectors for writing implements; Means for protecting the writing-points
 B43K 23/004
·  Holders specially adapted for assisting handicapped or disabled persons to write (B43L 15/00 takes precedence)  [6]
 B43K 23/008
·  Holders comprising finger grips (B43K 23/004, B43K 23/012 take precedence)  [6]
 B43K 23/012
·  Holders for attachment to finger tips (B43K 23/004 takes precedence)  [6]
 B43K 23/016
·  Holders for crayons or chalks (B43K 23/004-B43K 23/012, B43K 23/02 take precedence)  [6]
 B43K 23/02
·  with means for preventing rolling (B43K 23/004-B43K 23/012 take precedence)  [6]
 B43K 23/04
·  ·  enabling the writing implement to be set upright
 B43K 23/06
·  Means for connecting two or more writing implements  [6]
 B43K 23/08
·  Protecting means, e.g. caps  [6]
 B43K 23/10
·  ·  for pencils  [6]
 B43K 23/12
·  ·  for pens  [6]
P:90 B43K 24/00
Mechanisms for selecting, projecting, retracting or locking writing units  [6]
 B43K 24/02
·  for locking a single writing unit in only fully projected or retracted positions
 B43K 24/03
·  ·  operated by flicking or tilting  [6]
 B43K 24/04
·  ·  operated by means sliding in longitudinally-slotted casings
 B43K 24/06
·  ·  operated by turning means
 B43K 24/08
·  ·  operated by push-buttons
 B43K 24/10
·  for selecting, projecting and locking several writing units
 B43K 24/12
·  ·  operated by means sliding in longitudinally-slotted casings
 B43K 24/14
·  ·  operated by turning means
 B43K 24/16
·  ·  operated by push-buttons
 B43K 24/18
·  ·  and for feeding the writing cores
P:0 B43K 25/00
Attaching writing implements to wearing apparel or objects involving constructional changes of the of the implements (protecting means, e.g. caps, B43K 23/08; garment-holding devices A44B 21/00; fastening articles to wearing apparel A45F 5/02)
 B43K 25/02
·  Clips  [6]
P:30 B43K 27/00
Multiple-point writing implements, e.g. multicolour; Combinations of writing implements (B43K 29/00 takes precedence; mechanisms for selecting, projecting, retracting or locking writing units B43K 24/00; multiple writing devices with pantographic linkages B43L 13/12)
 B43K 27/02
·  Combinations of pens and pencils
 B43K 27/04
·  Combinations of pencils (writing-core feed mechanisms B43K 21/02)
 B43K 27/08
·  Combinations of pens
 B43K 27/12
·  ·  of ball-point pens  [3]
P:20 B43K 29/00
Combinations of writing implements with other articles
 B43K 29/007
·  with advertising means  [6]
 B43K 29/013
·  with stamping means  [6]
 B43K 29/02
·  with rubbers
 B43K 29/04
·  with blotters
 B43K 29/05
·  with applicators for eradicating- or correcting-liquid  [6]
 B43K 29/06
·  with sharpening devices (with erasing knives B43K 29/18; pocket knives with pencils B26B)
 B43K 29/08
·  with measuring, computing or indicating devices
 B43K 29/087
·  ·  for indicating time, e.g. with calendars or watches  [6]
 B43K 29/093
·  ·  with calculators  [6]
 B43K 29/10
·  with illuminating devices
 B43K 29/12
·  with memorandum appliances (with book covers B42D)
 B43K 29/16
·  with lighters
 B43K 29/18
·  with hand tools, e.g. erasing knives (with pocket knives B26B)
 B43K 29/20
·  with other articles having storage compartments (with lighters B43K 29/16; writing implements functioning as, or combined with, writing implement receptacles B43K 31/00)
P:10 B43K 31/00
Writing implement receptacles functioning as, or combined with, writing implements (other writing implement receptacles A45C 11/34, A45C 11/36)