| Patents for B31C 3 - Forming paper tubes or pipes by feeding obliquely to the winding mandrel centre line (572) |
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| 05/02/2006 | US7038587 Identification device for multilayer tubular structures |
| 03/29/2006 | EP1638765A1 Spiral wound tubes, method and apparatus for forming the same |
| 03/08/2006 | EP1631425A1 Machine for producing tubular products with a cutter carried by a rotating arm and relative production method |
| 03/08/2006 | CN1744986A Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 03/02/2006 | WO2005113225A3 Partially adhered tube and method and apparatus for manufacturing same |
| 02/15/2006 | EP1625012A1 Machine and method for forming helically wound paper tubes having improved mechanical resistance |
| 02/02/2006 | US20060021725 High strength dimensionally stable core |
| 01/12/2006 | US20060006275 System for dispensing paper rolls with conductive tubes |
| 12/15/2005 | WO2005097604A3 Identification device for multilayer tubular structures |
| 12/08/2005 | US20050271839 Use of foamed adhesives to make paper cores or tubes |
| 12/01/2005 | WO2005113225A2 Partially adhered tube and method and apparatus for manufacturing same |
| 11/24/2005 | US20050260365 Wound tubes with partially adhered structural layers, and methods for making same |
| 11/24/2005 | US20050258219 Partially adhered tube and methods and apparatus for manufacturing same |
| 11/24/2005 | US20050257878 Radio frequence drying for use in core and tubewinding operations |
| 11/23/2005 | EP1597060A2 Method and apparatus for preparing a tube |
| 11/17/2005 | US20050255981 Machine and method for producing cardboard tubes |
| 11/08/2005 | US6962736 Structural ply of a paperboard core, a paperboard core made thereof, and a method of improving the stiffness of a paperboard core |
| 11/03/2005 | US20050245377 Apparatus for feeding paper webs and the like, for the production of cardboard tubes |
| 11/02/2005 | EP1591232A1 Machine for the production of tubular bodies |
| 10/27/2005 | US20050237200 Identification device for multilayer tubular structures |
| 10/26/2005 | EP1587669A1 Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 10/20/2005 | WO2005097604A2 Identification device for multilayer tubular structures |
| 10/19/2005 | CN1223307C Roll-type adhesive cleaner and method for producing same |
| 09/27/2005 | CA2322667C Sealant layer for container lid |
| 09/15/2005 | US20050199764 Stackable winding core and method of making same |
| 09/14/2005 | EP1574466A1 Stackable winding core and method of making same |
| 09/14/2005 | EP1573132A2 Method of making a dry bonded paperboard structure |
| 09/14/2005 | CN1666945A Stackable winding core and method of making same |
| 09/08/2005 | DE102004006094A1 Manufacture of recyclable paper transport pallets of goods involves supply section with buffer transport section, working section and further buffer transport section and cutting machine with knife |
| 09/06/2005 | US6939590 Paperboard tube structures with one or more cut-and-folded plies |
| 09/01/2005 | WO2005080072A1 Machine and method for producing cardboard tubes |
| 08/17/2005 | CN2717684Y Seamless paper tube structure |
| 08/17/2005 | CN2717683Y 纸管结构 Paper tube structure |
| 06/29/2005 | EP1545867A1 Apparatus for feeding paper webs and the like, for the production of cardboard tubes |
| 06/28/2005 | CA2316911C Paperboard core with an improved chuck strength, for the paper industry, and a method of fabricating such |
| 06/16/2005 | US20050129884 Spiral wound tubes, method and apparatus for forming the same |
| 06/15/2005 | EP1539473A1 Machine and method for producing cardboard tubes |
| 04/28/2005 | WO2005037533A1 Bitumen-based adhesive in lignocellulosic product |
| 04/28/2005 | US20050089653 Bonding sheets or layers with a bitumen-based adhesive which are less expensive; products may include spiral-wound or convolute-wound tubes (e.g. toilet paper rolls) and/or corrugated board (cardboard) |
| 04/19/2005 | US6881286 Tubular container with a heat seal having non-symmetrical inner and outer beads |
| 03/29/2005 | CA2322727C Tubular container with a heat seal having non-symmetrical inner and outer beads |
| 03/22/2005 | CA2234079C Method and device for production of tubes |
| 03/09/2005 | EP1007343B1 A method of manufacturing a paperboard core made up of structural plies, and corresponding paperboard core |
| 02/10/2005 | DE10332199A1 Behälter aus wendelförmig gewickelten Materialstreifen, Vorrichtung und Verfahren zu dessen Herstellung Container made of helically wound strips of material, device and process for its preparation |
| 02/08/2005 | US6851643 Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 01/27/2005 | WO2005007521A1 Container made from spirally wound material strips, and device and method for manufacturing same |
| 01/20/2005 | WO2005005135A1 Spiral wound tubes, method and apparatus for forming the same |
| 01/20/2005 | CA2530002A1 Spiral wound tubes, method and apparatus for forming the same |
| 12/30/2004 | US20040265526 Spiral wound tubes, method and apparatus for forming the same |
| 12/21/2004 | CA2312143C Window for spirally formed containers |
| 12/09/2004 | WO2004106017A1 Machine for producing tubular products with a cutter carried by a rotating arm and relative production method |
| 11/25/2004 | WO2004101265A1 Machine and method for forming helically wound paper tubes having improved mechanical resistance |
| 11/25/2004 | CA2523041A1 Machine and method for forming helically wound paper tubes having improved mechanical resistance |
| 11/09/2004 | US6815022 Laminated structures constructed from adhesively joined sheet material layers |
| 10/21/2004 | WO2004076163A3 Method and apparatus for preparing a tube |
| 09/23/2004 | US20040185205 Joined together with a cold seal adhesive; tubes may be used in a variety of applications including as cores for hygienic paper rolls |
| 09/23/2004 | US20040182500 Paperboard tube structures with one or more cut-and-folded plies |
| 09/22/2004 | EP1459877A2 Paperboard tube structures with one or more cut-and-folded plies |
| 09/22/2004 | EP1459876A2 Tube made out of pre-adhered plies |
| 09/20/2004 | CA2458089A1 Paperboard tube structures with one or more cut-and-folded plies |
| 09/10/2004 | WO2004076163A2 Method and apparatus for preparing a tube |
| 08/31/2004 | US6783623 Method of making a dry bonded paperboard structure |
| 08/26/2004 | US20040166257 Substrate for core and tubewinding |
| 08/26/2004 | US20040166256 Substrate for core and tubewinding |
| 08/26/2004 | US20040166255 Substrate for core and tubewinding |
| 08/26/2004 | US20040163725 Substrate for core and tubewinding |
| 08/19/2004 | WO2004069529A1 Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 08/19/2004 | DE19832574B4 Verfahren zum Herstellen eines Dosenrumpfes A method for manufacturing a can body |
| 07/29/2004 | US20040144885 Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 07/28/2004 | CN1516666A Closed container and process for its manufacture |
| 07/22/2004 | US20040142133 Hermetically closed container and process for its manufacture |
| 07/15/2004 | WO2004038099A3 Method of making a dry bonded paperboard structure |
| 07/13/2004 | US6761675 Tubular composite containers having unsupported film liners and methods and apparatus for making same |
| 07/01/2004 | WO2004054791A1 Machine and method for producing helically wound tubes |
| 06/24/2004 | WO2004053897A1 Method and device for placing a lapping onto an element |
| 06/24/2004 | WO2004041524A3 High strength dimensionally stable core |
| 06/03/2004 | US20040103985 Method of making a dry bonded paperboard structure |
| 06/02/2004 | CN1500713A Wound multi-layer tube having one or more embossed plies |
| 05/21/2004 | WO2004041524A2 High strength dimensionally stable core |
| 05/20/2004 | US20040096604 Wound multi-layer tube having one or more embossed plies |
| 05/19/2004 | EP1419985A2 Wound multi-layer tube having one or more embossed plies |
| 05/18/2004 | CA2445090A1 Wound multi-layer tube having one or more embossed plies |
| 05/13/2004 | WO2004039570A1 Machine for the production of tubular bodies |
| 05/11/2004 | CA2280947C A structural ply of a paperboard core, a paperboard core made thereof, and a method of improving the stiffness of a paperboard core |
| 05/06/2004 | WO2004038099A2 Method of making a dry bonded paperboard structure |
| 05/06/2004 | CA2492077A1 Method of making a dry bonded paperboard structure |
| 04/29/2004 | US20040079501 Method of making a dry bonded paperboard structure |
| 04/21/2004 | EP1409235A1 Use of foamed adhesives to make paper cores or tubes |
| 04/08/2004 | WO2004028793A1 Apparatus for feeding paper webs and the like, for the production of cardboard tubes |
| 03/25/2004 | US20040058109 Use of foamed adhesives to make paper cores or tubes |
| 03/18/2004 | US20040052987 Heat resistance, moistureproof and gas impervious containers comprising paperboard, having shield or barrier multilayers on the surfaces |
| 03/10/2004 | EP1395492A1 Hermetically closed container and process for its manufacture |
| 03/03/2004 | EP1393668A1 Roll type adhesive cleaner and method for producing the same |
| 02/19/2004 | WO2004014641A1 Machine and method for producing cardboard tubes |
| 02/11/2004 | EP1388517A2 Core for rolls of sheet material, particularly paper, relative manufacturing method and brush using said core |
| 01/21/2004 | CN1135162C Screw winding paperboard core, and producing and using method thereof |
| 01/13/2004 | US6677019 Liquid-resistant paperboard tube, and method and apparatus for making same |
| 01/02/2004 | EP1375135A2 Laminated structures constructed from adhesively joined sheet material layers |
| 12/18/2003 | US20030232162 Blend of ethylene-hexene/1-/ copolymer, ethylene-vinyl ester, alkyl acrylate or (meth)acrylic acid and ethylene-alpha-olefin copolymer |
| 12/03/2003 | CN2589437Y Paper web for reel core |