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.
 B31B
MAKING BOXES, CARTONS, ENVELOPES, OR BAGS (incising, scoring, in general B26D 3/08; combined making and filling B65B)
 B31B

Note(s)

  1. In this subclass, envelopes or bags are regarded as being essentially flexible containers, the final shape of which is determined by their contents.
  2. In this subclass, the following expression is used with the meaning indicated:
    • "boxes or cartons" includes bags formed similarly to cartons, trays with upstanding side-walls, barrels, tubes and cups, other than articles formed by winding.
 B31B
Subclass index
MAKING IN GENERAL 1/00, 47/00, 49/00
MAKING BOXES OR CARTONS
Characterised by the method of making
by folding a single piece 3/00, 5/00
by assembling pieces 13/00, 17/00
by other shaping under pressure 43/00
Characterised by the kind of articles
lined or reinforced articles 7/00, 9/00, 15/00
other specified articles 11/00, 13/00, 45/00
MAKING ENVELOPES OR BAGS
Characterised by the method of making
from sheets 21/00, 31/00 - 35/00
from webs 23/00, 37/00
by other shaping under pressure 43/00
Characterised by the kind of articles
flat rectangular articles 19/00 - 23/00
articles with bases provided for thickness 29/00 - 37/00
other specified articles 25/00, 27/00, 39/00, 41/00, 45/00
P:220 B31B 1/00
Box, carton, envelope or bag making machinery characterised by performing specific operations (machinery for performing operations of general application, see the appropriate subclasses)
 B31B 1/14
·  Cutting, e.g. perforating, punching, slitting, trimming
 B31B 1/60
·  Uniting opposed surfaces or edges; Taping
 B31B 1/74
·  Auxiliary operations
 B31B 3/00 - 
B31B 17/00
Machinery for making boxes or cartons
P:80 B31B 3/00
Machinery characterised by making boxes or cartons by folding single-piece sheets, blanks, or webs (B31B 5/00 takes precedence)
P:70 B31B 5/00
Machinery characterised by making boxes or cartons by folding single-piece sheets which can be set-up from a collapsed condition, including setting-up and recollapsing to break creases
P:20 B31B 7/00
Machinery characterised by making lined or internally-reinforced boxes or cartons (B31B 11/00 takes precedence)
P:30 B31B 9/00
Machinery characterised by making boxes or cartons having shouldered walls
P:10 B31B 11/00
Machinery characterised by making boxes or cartons having partitions or like inserts not integral with walls (making partitions, inserts, or reinforcements for boxes or cartons B31D)
P:40 B31B 13/00
Machinery characterised by assembling drawer-and-shell boxes or cartons
P:50 B31B 15/00
Machinery characterised by making covered or externally-reinforced boxes or cartons
P:60 B31B 17/00
Machinery characterised by making other boxes or cartons by assembling several separate sheets, blanks, or webs
 B31B 19/00 - 
B31B 41/00
Machinery for making envelopes or bags
 B31B 19/00 - 
B31B 41/00

Note(s)

Machinery for making boxes or cartons as well as envelopes or bags is classified in groups B31B 3/00-B31B 17/00.

P:190 B31B 19/00
Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents (B31B 21/00, B31B 23/00 take precedence)
P:170 B31B 21/00
Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes
P:180 B31B 23/00
Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs, e.g. from flattened tubular webs (machinery characterised by cutting sheets or blanks from webs and working them to form such envelopes or bags B31B 21/00)
P:100 B31B 25/00
Machinery characterised by making pointed or tapered envelopes or bags
P:110 B31B 27/00
Machinery characterised by making interconnected envelopes or bags
P:160 B31B 29/00
Machinery characterised by making envelopes or bags with structural provision at the base for thickness or contents (B31B 31/00-B31B 37/00 take precedence)
P:140 B31B 31/00
Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes (B31B 33/00, B31B 35/00 take precedence)
P:120 B31B 33/00
Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes, the longitudinal axes of the envelopes or bags being parallel to the direction in which the sheets or blanks are fed
P:130 B31B 35/00
Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from sheets or blanks, e.g. from flattened tubes, the longitudinal axes of the envelopes or bags being perpendicular to the direction in which the sheets or blanks are fed
P:150 B31B 37/00
Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents, from webs, e.g. from tubular webs (machinery characterised by cutting sheets or blanks from webs and working them to form such envelopes or bags B31B 31/00)
P:90 B31B 39/00
Machinery characterised by making lined envelopes or bags
P:200 B31B 41/00
Machinery characterised by making envelopes or bags of other specific form or construction
P:210 B31B 43/00
Machinery characterised by making containers by shaping, otherwise than by folding, sheet material under pressure
P:0 B31B 45/00
Machinery characterised by making containers having corrugated or pleated walls
P:230 B31B 47/00
Hand tools for making envelopes, bags, boxes or cartons
P:240 B31B 49/00
Machinery, accessories or processes not provided for in groups B31B 1/00-B31B 47/00 (forms or constructions of boxes, cartons, envelopes or bags B65D)  [2]
 B31B 49/00

Note(s)

Processes dependent on the use of specific machinery provided for in groups B31B 1/00-B31B 45/00 are classified in those groups.  [2]