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Class Information
Number: 493/269
Name: Manufacturing container or tube from paper; or other manufacturing from a sheet or web > Tube making
Description: Method or apparatus for forming a sheet or web workpiece into the shape of a hollow cylinder, wherein the cylinder may be circular, oval, or polygonal in cross section and may have one cross sectional dimension at one axial location and a different cross sectional dimension at another axial location.


Sub-classes under this class:

Class Number Class Name Patents
493/297 Assembling of distinct members 54
493/303 Convolute winding 36
493/296 Frustoconical tube 25
493/308 Including closing end of tube 63
493/295 Polygonal cross section tube 52
493/299 Spiral winding 52
493/292 Tube including metal component 13
493/302 With advancing of tube axially 113
493/272 With coating 6
493/287 With cutting, breaking, tearing, or abrading 46
493/293 With extruding, drawing, or attenuating 16
493/294 With lining of tube 20
493/271 With minute size change of formed tube 8
493/270 With printing or photographic reproduction 4
493/291 With surface treatment (e.g., polishing, burnishing, etc.) 7


Patents under this class:

Patent Number Title Of Patent Date Issued
7603832 Packing apparatus, packing bag forming method, and packing method Oct. 20, 2009
7556595 Method and device for the production of packaging in bags Jul. 7, 2009
7553269 Method of manufacturing a bag Jun. 30, 2009
7553388 Consolidation joining of thermoplastic laminate ducts Jun. 30, 2009
7540834 Backseamed casing and packaged product incorporating same Jun. 2, 2009
7527586 Winding core for fabrics May. 5, 2009
7503885 Flexible storage tank Mar. 17, 2009
7452318 Machine and method for forming helically wound paper tubes having improved mechanical resistance Nov. 18, 2008
7452319 Apparatus for producing double-walled composite tubes Nov. 18, 2008
7407470 Apparatus for feeding paper webs and the like, for the production of cardboard tubes Aug. 5, 2008
7399264 High frequency induction welding of austenitic stainless steel for pressure vessel tubing Jul. 15, 2008
7361130 System for production and subsequent palletizing of tube segments, bags or sacks Apr. 22, 2008
7322922 Method and device for jointing of cores Jan. 29, 2008
7175585 Heat-insulating container and apparatus for producing the same Feb. 13, 2007
7160236 Process for production of a bobbin tube for yarn, device for embodiment of such process, bobbin tube obtained and mode of utilization of said bobbin tube Jan. 9, 2007
7144358 Method and apparatus for manufacturing tube-shaped packages made of flexible material Dec. 5, 2006
7112169 Plastic bag and method Sep. 26, 2006
6976618 Tubular cartons Dec. 20, 2005
6811530 Bag manufacturing former laminated films Nov. 2, 2004
6755774 Method of automatically producing bags with holes and apparatus therefor Jun. 29, 2004
6682469 Inside printing of flexible packages Jan. 27, 2004
6651694 Insulating cover and method for liquid supply tube Nov. 25, 2003
6612356 Apparatus for improving film machinability during film sealing Sep. 2, 2003
6592505 Device for forming a tube provided with gussets Jul. 15, 2003
6589147 Lightweight former and former assembly Jul. 8, 2003
6558306 Multi-ply composite container with regions of weakened strength and method for manufacturing same May. 6, 2003
6416453 Seal bar mechanism for bag machines Jul. 9, 2002
6296600 Composite container having foamed adhesive Oct. 2, 2001
6196988 Method of forming a flexible applicator for inserting an article into a mammalian body cavity Mar. 6, 2001
5916403 Methods and apparatus for forming cylindrical photosensitive elements Jun. 29, 1999
5697786 Dental fluid suction unit and method for its manufacture Dec. 16, 1997
5597433 Method and apparatus for manufacturing plastic canisters Jan. 28, 1997
5389067 Tampon applicator and method of making same Feb. 14, 1995
4950345 Method and apparatus for making improved seals between polymeric film materials Aug. 21, 1990
4925440 Apparatus for the winding of container jackets May. 15, 1990
4911685 Coin package Mar. 27, 1990
4713135 Process for seaming coated cellulose webs Dec. 15, 1987
4655738 Apparatus for the manufacture of a tubular container sleeve Apr. 7, 1987
4535506 Method and device for everting flexible tubular member Aug. 20, 1985
4505769 Method and apparatus for making a wrapper sleeve Mar. 19, 1985
4359076 Adjustable basket filler, blank and method of making Nov. 16, 1982
4304561 Film folding device Dec. 8, 1981
4284228 Packing containers of laminated material having venting means Aug. 18, 1981
4053346 Method and apparatus for forming thermoplastic containers Oct. 11, 1977



 
 
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