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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised
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CPC
COOPERATIVE PATENT CLASSIFICATION
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MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER OR CARDBOARD (characteristics relating to the working of plastics B29; shaping of plastics or substances in a plastic state B29C) [2015‑05]
NOTE

  • The term "winding" in this subclass means forming two or more complete convolutions.
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B31C 1/00
Forming tubes or pipes of paper or cardboard by feeding at right angles to the winding mandrel centre line [2015‑05]
B31C 1/02
.
Machines therefor having additional mandrels [2013‑01]
B31C 1/04
.
and forming a tube end into a container bottom [2013‑01]
B31C 1/06
.
and inserting into a tube end a bottom to form a container [2013‑01]
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B31C 1/08
.
Accessories of machines therefor not otherwise provided for [2013‑01]
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B31C 1/083
. .
{
Winding mandrels
}
[2013‑01]
B31C 1/086
. . .
{
expansibles
}
[2013‑01]
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B31C 3/00
Forming tubes or pipes of paper or cardboard by feeding obliquely to the winding mandrel centre line [2015‑05]
B31C 3/02
.
and inserting into a tube end a bottom to form a container [2013‑01]
B31C 3/04
.
Seam processing [2013‑01]
B31C 5/00
Forming tubes or pipes of paper or cardboard without mandrels [2015‑05]
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Forming conical articles of paper or cardboard by winding (winding blanks B31B) [2015‑05]
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B31C 7/02
.
Forming truncated cones [2013‑01]
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B31C 7/04
. .
on two or more mandrels [2013‑01]
B31C 7/06
. . .
and inserting into a cone end a bottom to form a container [2013‑01]
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B31C 7/08
.
Forming pointed cones [2013‑01]
B31C 7/10
. .
on two or more mandrels [2013‑01]
Simultaneous forming of cylindrical and conical shapes by winding separate webs, e.g. forming bottles (winding blanks B31B) [2013‑01]
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Machinery for winding paper or cardboard combined with other machinery [2015‑05]
.
for additionally shaping the articles [2013‑01]
B31C 11/04
.
for applying impregnating by coating-substances during the winding [2013‑01]
B31C 11/06
.
for drying the wound and impregnated articles [2013‑01]
B31C 13/00
Making wound articles not otherwise provided for [2013‑01]
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Last Modified: 10/10/2013