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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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MAKING WOUND ARTICLES, e.g. WOUND TUBES (characteristics relating to the working of plastics B29)
NOTE
-
The term "winding" in this subclass means forming two or more complete convolutions.

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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
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B31C 1/08
.
Accessories of machines therefor not otherwise provided for
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B31C 1/083
. .
{
Winding mandrels
}
B31C 1/086
. . .
{
expansibles
}
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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
B31C 5/00
Forming paper tubes or pipes without mandrels
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Forming conical paper articles by winding (winding blanks B31B)
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B31C 7/02
.
Forming truncated cones
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B31C 7/04
. .
on two or more mandrels
B31C 7/06
. . .
and inserting into a cone end a bottom to form a container
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B31C 7/08
.
Forming pointed cones
B31C 7/10
. .
on two or more mandrels
Simultaneous forming of cylindrical and conical shapes by winding separate webs, e.g. forming bottles (winding blanks B31B)
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Paper-winding machinery combined with other machinery
.
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
Making wound articles not otherwise provided for
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Last Modified: 10/10/2013