Cooperative Patent Classification


CPC Definition - Subclass B31B

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Last Updated Version: 2017.08
MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)
References
Limiting references

This place does not cover:

Making wound articles, e.g. wound tubes

Combined making and filling

Informative references

Attention is drawn to the following places, which may be of interest for search:

Filling, or other packaging operations

Packaging machines incorporating means for making containers

Box and bags

Handling thin material, e.g. sheets, web

Special rules of classification

When a document is classified in one of the groups B31B 50/00 - B31B 70/99, it must also be classified completely in the groups by allocating the appropriate Indexing Codes as provided for in B31B 2100/00 - B31B 2170/30 and B31B 2247/00. Classification in B31B 2100/00 - B31B 2170/00 is mandatory.

All aspects disclosed by the documents must be classified ( deep-indexing).

Example illustrating deep-indexing:

"A device for forming a multilayered tubular web into flat bags. In one embodiment a handle is formed by punching".

This document will be given the following classification:

All relevant information contained in a document must be classified, irrespective its position in the document: description, claims or figures are to be treated with equal importance.

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Envelopes or bags

essentially flexible containers, the final shape of which is determined by their contents

Boxes or cartons

including bags formed similarly to cartons, trays with upstanding side-walls, barrels, tubes and cups, other than articles formed by winding

Making rigid or semi-rigid containers, e.g. boxes or cartons
Special rules of classification

Documents relating to box making must be classified in at least one sub-group of B31B 50/00 and at least one of the sub-groups of B31B 2100/00 - B31B 2120/00

{Modifying the shape of tubular boxes or of paper bottle necks}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Modifying the shape of tubular paper products

{Prebreaking}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Breaking creases to facilitate setting-up boxes in relation to packaging operations

{Closing boxes}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Closing boxes in relation to packaging operations

{Holders for feeding or positioning blanks or webs}
Definition statement

This place covers:

Holders for the work piece.

Holders carrying feeding and guiding means.

Feeding sheets or blanks
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Feeding articles

by air pressure or suction
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Advancing webs

Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B 50/83)
References
Limiting references

This place does not cover:

Cutting window openings

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cutting

Means for removing cut-out material or waste

Surface scoring
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Scoring, creasing not limited to box or bag making

Folding sheets, blanks or webs
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Folding thin material Folding thin material

around mandrels, e.g. for forming bottoms
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Wrapping as packaging operation consisting of folding sheet material around a product

and interconnecting side walls
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Connecting surfaces or edges by interengaging tongues and flaps

{Uniting opposed edges by injecting thermoplastic material}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Joining articles by injection moulding

Opening and distending flattened articles
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Opening or setting-up boxes in relation to packaging operations

Forming or attaching accessories, e.g. opening devices, closures or tear strings
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Auxiliary devices operating on sheets, blanks, webs, containers, or packages in relation to packaging operations

{Applying tabs, patches, strips or strings on blanks or webs}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Patches or strips having the function of uniting opposed surfaces or edges

Applying tear-strips or tear-tape in relation to packaging operations

{Applying patches}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Patches having the function of uniting opposed surfaces or edges

{the blanks remaining stationary during application of the patches}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Strips having the function of uniting opposed surfaces or edges

{Applying closure elements to blanks, webs or boxes}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applying tabs over discharge openings in relation to packaging operations

Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applying or incorporating rigid fittings, e.g. discharge spouts, in relation to packaging operations

Delivering
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Delivering sheets or thin material

Making flexible containers, e.g. envelopes or bags
Special rules of classification

Documents relating to bag making must be classified in at least one subgroup of B31B 70/00 and in at least one of the subgroups of B31B 2150/00 - B31B 2170/00.

{Opening or distending bags}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Opening or setting-up bags in relation to packaging operations

{Closing bags}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Closing bags in relation to packaging operations

{Stiffening or reinforcing (B31B 70/876 takes precedence)}
References
Limiting references

This place does not cover:

Reinforcing by applying patches or by folding in connection with forming or mounting handles

Feeding sheets or blanks
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Feeding articles

Feeding or positioning webs
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Advancing webs

Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B 70/83)
References
Limiting references

This place does not cover:

Cutting window openings

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cutting or punching in connection with the forming or mounting of handles

Cutting

Means for removing cut-out material or waste

{Surface scoring}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Scoring, creasing not limited to box or bag making

Folding sheets, blanks or webs
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Folding thin material

{Applying patches, strips or strings on sheets or webs}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Patches as reinforcement for handles

Applying tear-strips or tear-tape in relation to packaging operations

{Applying closures}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applying tabs over discharge openings in relation to packaging operations

{Making bags having interengaging closure elements}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applying or incorporating profile-strips, e.g. for reclosable bags, in relation to packaging operations

{Applying the closure elements in the machine direction}
Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Machine direction

indicates the main direction of transport of the sheets or webs through the machine

{Applying the closure elements in the cross direction}
Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Cross direction

indicates a direction perpendicular to the main direction of transport or the sheets of webs through the machine

{the strings being applied in the machine direction}
Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Machine direction

indicates the main direction of transport of the sheets or webs through the machine

{the strings being applied in the cross direction}
Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Cross direction

indicates a direction perpendicular to the main direction of transport of the sheets or webs through the machine

Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Applying or incorporating rigid fittings, e.g. discharge spouts in relation to packaging operations

Forming integral handles or mounting separate handles
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Making separate handles

Delivering
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Delivering sheet or web material in general

Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Making boxes in relation with packaging operations

Flexible containers made from sheets or blanks, e.g. from flattened tubes
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Making bags having multilayered walls from webs

Forming bags from single sheets in relation with packaging operations

Flexible containers made from webs
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Forming bags from webs in relation with packaging operations

{by joining superimposed webs, e.g. with separate bottom webs}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Forming bags from several webs in relation with packaging operations

Making suction cleaner bags
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Suction cleaner bags