Cooperative Patent Classification

CPC Definition - Subclass B31F

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Last Updated Version: 2016.11
MECHANICAL WORKING OR DEFORMATION OF PAPER OR CARDBOARD (making layered products not composed wholly of paper or cardboard B32B)
References
References out of a residual place

Examples of places in relation to which this place is residual:

Making boxes, cartons, envelopes or bags

Making wound paper articles

Making other paper articles

Informative references

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

Cutting, trimming, in general

Incising, scoring, in general

Multi-ply material of paper or cardboard, manufacture thereof

Mechanical deformation of paper or cardboard without removing material, e.g. in combination with laminating
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Producing decorative effects by processes for stamping ornamental designs on surfaces

Informative references

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

Folding thin material

Mechanical deformation during paper or cardboard making

{Shaping of tube ends, e.g. flanging, belling, closing, rim-rolling, corrugating; Fixing elements to tube ends}
References
Informative references

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

Making cylindrical boxes with separate bottoms

{Lining or sheathing (folding the edge of the sheathing B31F 1/0016, B31F 1/0029)}
References
Informative references

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

Making lined boxes

Embossing {, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles} ({B31F 1/128 takes precedence;} corrugating B31F 1/20; embossing in combination with printing B41F 19/02, B41M 1/24; typewriters for embossing B41J 3/38; stamping in combination with deforming B41K 3/36)
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Machines or apparatus for embossing decorations or marks

Artists hand tools for embossing

Special rules of classification

Classification in deep indexing scheme B31F 2201/07 is mandatory.

Creasing (corrugating B31F 1/20; zig-zag folding B65H 45/20 {; combined with folding B31F 1/0012, B31F 1/0022; grooving by cutting B26D 3/06, B26D 3/08; by milling grooves B23C 3/30; of plastics material B29C 53/06})
References
Informative references

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

Making creases during box or bag making

Crêping paper or cardboard {, i.e. providing paper or cardboard with small irregular crinkles; Making paper or cardboard elastic in all directions}
References
Informative references

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

Paper making

Corrugating; Corrugating combined with laminating to other paper or cardboard layers
References
Informative references

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

Corrugating sheet metal

Corrugating veneer

Corrugating plastics material

Zig-Zag folders

{Making corrugated cardboard of composite structure, e.g. comprising two or more corrugated layers}
References
Informative references

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

Making cellular structures by cutting corrugated webs longitudinally into strips, piling these strips and uniting them

Laminated products characterised by a layer comprising a deformed thin sheet , e.g. corrugated, crumpled

Moistening and heating webs to facilitate mechanical deformation and drying deformed webs {(during corrugating B31F 1/28)}
Definition statement

This place covers:

E.g. impregnating.

References
Limiting references

This place does not cover:

Moistening, drying during making of corrugated web having transverse corrugations

Attaching together paper or cardboard sheets, strips or webs {or other preformed paper articles (joining by rim-rolling B31F 1/0041, B31F 1/009; closing tube ends by inserting an element B31F 1/008, making boxes B31B)}; Reinforcing edges of paper or cardboard
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Stapling in making boxes, bags or the like

Attaching the replacement web to the expiring web during web-roll changing

Apparatus for splicing webs during handling

Informative references

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

Means for applying adhesive or glue

Making layered products

Splicing webs

Processes for working paper or cardboard not otherwise provided for
Definition statement

This place covers:

Processes for working paper not provided for in B31B 1/00, B31C 1/00 - B31C 13/00, B31D 1/00 - B31D 5/00, B31F 1/00 - B31F 5/00.