2491048

Information

• Patent Grant
• 2491048

• References
• Source

• Patent Number

  2,491,048

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1949
  75 years ago

• CPC

  • B29C66/83413 - cooperating rollers, cylinders or drums
  • B29C53/387 - the joining being done from the inside
  • B29C53/50 - using internal forming surfaces
  • B29C65/04 - Dielectric heating, e.g. high-frequency welding
  • B29C65/18 - using heated tools
  • B29C66/1122 - Single lap to lap joints
  • B29C66/232 - said joint lines being multiple and parallel
  • B29C66/4322 - by joining a single sheet to itself
  • B29C66/49 - Internally supporting the
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/8122 - characterised by the composition of the material constituting the pressing elements
  • B29C66/81881 - of the welding jaws
  • Y10T156/1013 - and edge-joining of one piece blank to form tube

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 493 - Manufacturing container or tube from paper