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]
P:120 B43K 3/00
Nib holders (holders for continuously-adjustable nibs B43K 17/00)
P:80 B43K 5/00
Pens with ink reservoirs in holders, e.g. fountain-pens (nibs or writing-points with ink reservoirs B43K 1/00; 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)
P:70 B43K 7/00
Ball-point pens (multiple-point writing implements B43K 27/00)
P:60 B43K 8/00
Pens with writing-points other than nibs or balls (brushes with reservoir for supplying substances A46B 11/00)
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 25/00)  [3]
P:160 B43K 15/00
Assembling, finishing, or repairing pens
P:100 B43K 17/00
Continuously-adjustable nibs, e.g. for drawing-pens; Holders therefor (features common to fountain-pens B43K 5/00)
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]
P:40 B43K 21/00
Propelling pencils (projecting mechanisms for writing units B43K 24/00; multiple-point writing implements B43K 27/00)
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]
P:90 B43K 24/00
Mechanisms for selecting, projecting, retracting or locking writing units  [6]
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 23/00; garment-holding devices A44B 21/00; fastening articles to wearing apparel A45F 5/00)
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 13/10)
P:20 B43K 29/00
Combinations of writing implements with other articles (writing implements functioning as, or combined with, writing implement receptacles B43K 31/00)
 B43K 29/007
·  with advertising means  [6]
P:10 B43K 31/00
Writing implement receptacles functioning as, or combined with, writing implements (other writing implement receptacles A45C 11/34, A45C 11/00)