| Patents for B31C 3 - Forming paper tubes or pipes by feeding obliquely to the winding mandrel centre line (572) |
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| 06/24/2010 | CA2746108A1 Method for making a sheet of degradable paper, use of said sheet for making a mandrel defining a roll carrier, degradable paper sheet, and mandrel including at least one of the said sheets |
| 06/24/2010 | CA2746106A1 Water-degradable paper sheet, and tube for a paper roll consisting of such a sheet |
| 06/09/2010 | CN101370608B Machine for the production of tubes by winding strips of weblike material |
| 05/26/2010 | CN101073927B Machine for forming paper container |
| 05/19/2010 | EP2185350A2 Core winder with forming unit with a toothed belt |
| 05/12/2010 | EP2184161A1 Core having enhanced ID stiffness and method for manufacturing the same |
| 05/06/2010 | US20100113242 Core winder with magnetic support for the winding spindle |
| 04/13/2010 | US7695420 Machine for producing tubular products with a cutter carried by a rotating arm and relative production method |
| 04/07/2010 | EP2170595A1 System for cylindrical container sleeve formation |
| 03/31/2010 | CN101687380A Core winder with magnetic support for the winding spindle |
| 03/17/2010 | EP2162279A2 Method for producing a formwork tube of planar material by spiral winding on a spiral winding machine and such a formwork tube |
| 02/24/2010 | CN201410764Y Non-stopping process device of single sheets of bottom paper of paper cup and paper bowl |
| 01/27/2010 | CN201389995Y Paper strip sizing device of spiral paper cylinder rolling machine |
| 01/13/2010 | CN101626882A Method and apparatus for making a paint roller and product produced thereby |
| 12/23/2009 | EP2135730A1 Partially adhered tube |
| 12/08/2009 | US7628877 Composite structural material and method therefor |
| 12/02/2009 | CN201353895Y Screw-type square paper tube manufacturing device |
| 10/22/2009 | WO2009054016A3 Core winder with magnetic support for the winding spindle |
| 10/21/2009 | CN201329675Y Tube dropping device for paper tube rolling |
| 09/01/2009 | CA2451937C Core reduction method and apparatus |
| 08/26/2009 | CN100532210C Identification device for multilayer tubular structures |
| 07/08/2009 | CN201268125Y Paper tube film coating machine |
| 07/02/2009 | US20090170682 Machine and method for producing cardboard tubes |
| 06/18/2009 | US20090155512 Rolls of material providing one-handed dispensing of sheets of pre-determined length |
| 05/22/2009 | WO2009003456A3 Method for producing a formwork tube of planar material by spiral winding on a spiral winding machine and such a formwork tube |
| 05/19/2009 | CA2514587C Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 05/14/2009 | WO2009040855A3 Core winder with forming unit with a toothed belt |
| 05/06/2009 | EP2055471A1 Machine and method for the production of tubes through winding of one or more strips of web material and tube thereby obtained |
| 05/06/2009 | CN100484749C Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 04/16/2009 | DE102007063648A1 Verfahren zum Herstellen eines Schalungsrohres aus Flachmaterial durch Spiralwickeln auf einer Spiralwickelmaschine sowie Schalungsrohr A method of producing a formwork tube of sheet material by spiral winding on a coil winding machine and formwork tube |
| 04/15/2009 | CN101407120A Multi-row cup bottom material transporting apparatus |
| 04/15/2009 | CN101407119A Reel machine series girder assembly |
| 04/08/2009 | CN100475658C Closed container and process for manufacture |
| 04/02/2009 | WO2009040866A1 Core winder with a cutting tool associated with a pressure member |
| 04/02/2009 | WO2009040855A2 Core winder with forming unit with a toothed belt |
| 04/02/2009 | CA2704747A1 Core winder with a cutting tool associated with a pressure member |
| 02/18/2009 | CN101370608A Machine for the production of tubes by winding strips of weblike material |
| 01/21/2009 | CN100453281C Machine for producing tubular products with a cutter carried by a rotating arm and relative production method |
| 01/15/2009 | DE102007030933A1 Formwork tube producing method for concrete building, involves applying and/or introducing marking on outer or inner surface of tube, where marking indicates layer of rip cord or rip cord ends and is in form of impression or strip line |
| 01/08/2009 | WO2009004619A1 System for cylindrical container sleeve formation |
| 01/08/2009 | WO2009003456A2 Method for producing a formwork tube of planar material by spiral winding on a spiral winding machine and such a formwork tube |
| 12/31/2008 | EP1940607B1 Spirally wound tube with voids and method for manufacturing the same |
| 12/10/2008 | CN201161463Y Cup bottom rolling and sealing mechanism of high speed paper cup machine |
| 11/19/2008 | CN201151215Y Bottom feeding mechanism of paper cup making machine |
| 11/18/2008 | US7452318 Machine and method for forming helically wound paper tubes having improved mechanical resistance |
| 10/01/2008 | EP1973684A1 Machine for the production of tubes by winding strips of weblike material |
| 09/24/2008 | CN201122508Y Insulation paper combination winding drum fixing device for transformer device |
| 09/23/2008 | CA2497756C Stackable winding core and method of making same |
| 09/17/2008 | CN201116006Y Paper tube tube-winding machine transmission device |
| 09/17/2008 | CN201116005Y Paper tube tube-winding machine driving belts connecting structure |
| 08/21/2008 | WO2008100379A1 Method and apparatus for making a paint roller and product produced thereby |
| 08/21/2008 | CA2678026A1 Method and apparatus for making a paint roller and product produced thereby |
| 08/20/2008 | EP1737735B1 Identification device for multilayer tubular structures |
| 08/05/2008 | US7407470 Apparatus for feeding paper webs and the like, for the production of cardboard tubes |
| 07/15/2008 | US7399264 High frequency induction welding of austenitic stainless steel for pressure vessel tubing |
| 07/09/2008 | EP1940607A1 Spirally wound tube with voids and method for manufacturing the same |
| 06/26/2008 | US20080153684 Machine and Method For Producing Cardboard Tubes |
| 04/02/2008 | EP1824668B1 Machine and method for forming tubes by helical winding of strips of web material |
| 03/19/2008 | EP1900507A1 Spirally wound tube with voids and method for manufacturing the same |
| 03/05/2008 | EP1545867B1 Apparatus for feeding paper webs and the like, for the production of cardboard tubes |
| 02/21/2008 | US20080045393 Multi-Layer Tube of Improved Physical Properties |
| 02/19/2008 | US7331504 Partially adhered tube and methods and apparatus for manufacturing same |
| 01/23/2008 | CN201009480Y Rectangle or polygon paper tube winding spindle |
| 01/10/2008 | US20080009399 Machine And Method For Forming Tubes By Helical Winding Of Strips Of Web Material |
| 12/06/2007 | DE202007010192U1 Flüssigkeitsbehälter, dessen Mantel weitgehend aus zellstoffhaltigem Material besteht Liquid container whose coat consists essentially of cellulose-containing material |
| 11/21/2007 | CN101073927A Machine for forming paper container |
| 10/24/2007 | EP1846224A1 Spiral wound tubes, method and apparatus for forming the same |
| 10/18/2007 | WO2007070418A3 Wound paperboard tube |
| 10/10/2007 | EP1841590A1 A reuse method for utilising reject rolls being produced in paper and cardboard factories |
| 08/29/2007 | EP1824668A1 Machine and method for forming tubes by helical winding of strips of web material |
| 07/18/2007 | EP1808289A1 Composite containers and methods for sealing the same |
| 07/03/2007 | CA2448797C Tube made out of pre-adhered plies |
| 06/28/2007 | WO2007072531A1 Machine for the production of tubes by winding strips of weblike material |
| 06/28/2007 | CA2663449A1 Machine for the production of tubes by winding strips of weblike material |
| 06/27/2007 | CN2915489Y Interlocked type stopper subassembly |
| 06/22/2007 | CA2633482A1 Wound paperboard tube |
| 06/13/2007 | EP1631425B1 Machine for producing tubular products with a cutter carried by a rotating arm |
| 05/10/2007 | US20070104916 Roll type adhesive cleaner and method for making the same |
| 05/10/2007 | DE102004006094B4 Herstellungsverfahren für eine Transportpalette Manufacturing method of a transport pallet |
| 05/02/2007 | CN2895044Y Flat-winding paper pipe machine mandrel rotary driving device |
| 05/02/2007 | CN2895043Y Flat-winding paper pipemachine mandrel |
| 05/02/2007 | CN1956890A Identification device for multilayer tubular structures |
| 04/28/2007 | CA2523867A1 Method of refurbishing used hollow cylindrical core members of paperboard material for rolls of paper or other sheet material |
| 03/22/2007 | WO2007033017A1 Spirally wound tube with voids and method for manufacturing the same |
| 02/21/2007 | EP1753604A2 Partially adhered tube and method and apparatus for manufacturing same |
| 01/11/2007 | US20070010387 Machine and method for forming helically wound paper tubes having improved mechanical resistance |
| 01/03/2007 | EP1737735A2 Identification device for multilayer tubular structures |
| 12/28/2006 | WO2006138216A1 Wound sandwich tube with corrugated shell |
| 12/28/2006 | US20060288558 Machine for producing tubular products with a cutter carried by a rotating arm and relative production method |
| 11/08/2006 | EP1718455A1 Machine and method for producing cardboard tubes |
| 10/17/2006 | US7121500 Stackable winding core and method of making same |
| 10/04/2006 | CN1842413A Machine and method for producing cardboard tubes |
| 08/23/2006 | EP1395492B1 Hermetically closed container and process for its manufacture |
| 08/17/2006 | WO2006086030A1 Spiral wound tubes, method and apparatus for forming the same |
| 08/17/2006 | CA2562794A1 Spiral wound tubes, method and apparatus for forming the same |
| 07/26/2006 | CN1266019C Paper tube for coiled core |
| 07/05/2006 | CN1798639A Machine for producing tubular products with a cutter carried by a rotating arm and relative production method |
| 06/29/2006 | US20060141179 Tube made out of pre-adhered plies |
| 06/21/2006 | EP1587669B1 Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
| 05/26/2006 | WO2006054327A1 Machine and method for forming tubes by helical winding of strips of web material |