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
  
SHAPING
 B31
MAKING PAPER ARTICLES; WORKING PAPER (making layered products not composed wholly of paper or cardboard B32B; handling thin material, e.g. sheets, webs, B65H)
 B31

Note(s)

  1. This class covers subject matter restricted to adaptations or associations of handling sheets, webs, or blanks peculiar to paper-working, e.g. bag or box making, machinery.
  2. This class does not cover:
  3. In this class, the following term is used with the meaning indicated:
    • "paper" covers material worked in a manner analogous to paper, e.g. plastics sheet materials, laminated materials or metal foils.
 B31C
MAKING WOUND ARTICLES, e.g. WOUND TUBES (characteristics relating to the working of plastics B29; shaping of plastics or substances in a plastic state B29C)
 B31C

Note(s)

In this subclass, the following term is used with the meaning indicated:

  • "winding" means forming two or more complete convolutions.

 B31C
Subclass index
MAKING WOUND ARTICLES CHARACTERISED BY THE METHOD USED
Winding around mandrels 1/00, 3/00
Winding without mandrels 5/00
Winding separate webs 9/00
MAKING WOUND ARTICLES CHARACTERISED BY THE SHAPE OF THE ARTICLES PRODUCED
Tubes 1/00, 3/00, 5/00
Cones 7/00
Other shapes 9/00, 99/00
AFTER-TREATMENTS, COMBINED MACHINERY 11/00
P:30 B31C 1/00
Forming paper tubes or pipes by feeding at right angles to the winding mandrel centre line
 B31C 1/02
·  Machines therefor having additional mandrels
 B31C 1/04
·  and forming a tube end into a container bottom
 B31C 1/06
·  and inserting into a tube end a bottom to form a container
 B31C 1/08
·  Accessories of machines therefor not otherwise provided for
P:40 B31C 3/00
Forming paper tubes or pipes by feeding obliquely to the winding mandrel centre line
 B31C 3/02
·  and inserting into a tube end a bottom to form a container
 B31C 3/04
·  Seam processing
P:50 B31C 5/00
Forming paper tubes or pipes without mandrels
P:20 B31C 7/00
Forming conical paper articles by winding (winding blanks B31B)
 B31C 7/02
·  Forming truncated cones
 B31C 7/04
·  ·  on two or more mandrels
 B31C 7/06
·  ·  ·  and inserting into a cone end a bottom to form a container
 B31C 7/08
·  Forming pointed cones
 B31C 7/10
·  ·  on two or more mandrels
P:10 B31C 9/00
Simultaneous forming of cylindrical and conical shapes by winding separate webs, e.g. forming bottles (winding blanks B31B)
P:0 B31C 11/00
Paper-winding machinery combined with other machinery
 B31C 11/02
·  for additionally shaping the articles
 B31C 11/04
·  for applying impregnating by coating-substances during the winding
 B31C 11/06
·  for drying the wound and impregnated articles
 B31C 13/00
( transferred to B31C 99/00 )
P:60 B31C 99/00
Subject matter not provided for in other groups of this subclass  [2009.01]