B31C - Making wound articles, e.g. wound tubes

More topics under "B31C - Making wound articles, e.g. wound tubes" (2,162)
B31C 1 - Forming paper tubes or pipes by feeding at right angles to the winding mandrel centre line (505)
B31C 11 - Paper-winding machinery combined with other machinery (483)
B31C 3 - Forming paper tubes or pipes by feeding obliquely to the winding mandrel centre line (572)
B31C 5 - Forming paper tubes or pipes without mandrels (79)
B31C 7 - Forming conical paper articles by winding (108)
B31C 9 - Simultaneous forming of cylindrical and conical shapes by winding separate webs, e.g. forming bottles (9)
B31C 99 - Subject matter not provided for in other groups of this subclass (406)

Patents for B31C - Making wound articles, e.g. wound tubes (7)
02/2011
02/15/2011	US7887659 Reuse method for utilising reject rolls being produced in paper and cardboard factories
10/2010
10/26/2010	CA2590067C Reuse method
04/2009
04/16/2009	US20090095405 Reuse Method for Utilising Reject Rolls Being Produced in Paper and Cardboard Factories
10/2007
10/10/2007	EP1841590A1 A reuse method for utilising reject rolls being produced in paper and cardboard factories
06/2006
06/22/2006	WO2006064083A1 A reuse method for utilising reject rolls being produced in paper and cardboard factories
04/2000
04/05/2000	EP0720583B1 Tubular core assemblies for rolls of paper or other sheet material
07/1996
07/10/1996	EP0720583A1 Tubular core assemblies for rolls of paper or other sheet material