3821051

Information

• Patent Grant
• 3821051

• References
• Source

• Patent Number

  3,821,051

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B29C43/305 - Making multilayered articles
  • B29C43/26 - in several steps
  • B29C65/20 - with direct contact
  • B29C66/1142 - Single butt to butt joints
  • B29C66/43 - Joining a relatively small portion of the surface of said articles
  • B29C66/438 - Joining sheets for making hollow-walled, channelled structures or multi-tubular articles
  • B29C66/5346 - said single elements being substantially flat
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/826 - without using a separate pressure application tool
  • B29C66/83411 - Roller, cylinder or drum types
  • B29C66/83413 - cooperating rollers, cylinders or drums
  • B29C66/836 - Moving relative to and tangentially to the parts to be joined
  • B29C67/0044 - for shaping edges or extremities
  • B29D24/004 - the structure having vertical or oblique ribs
  • B32B27/00 - Layered products comprising a layer of synthetic resin
  • E04C2/36 - spaced apart by transversely-placed strip material
  • B29C43/46 - Rollers
  • B29C66/4322 - by joining a single sheet to itself
  • B29C66/43441 - with two right angles
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/72523 - multi-channelled or multi-tubular
  • B29C2043/043 - rotating on their own axis without linear displacement
  • B29C2043/3433 - using dispensing heads
  • B29C2043/3678 - on cylindrical supports with moulds or mould cavities provided on the periphery
  • B29K2023/0633 - LDPE
  • B29K2995/0073 - smooth
  • B29L2024/00 - Articles with hollow walls
  • Y10T156/1013 - and edge-joining of one piece blank to form tube
  • Y10T156/1038 - Hollow cylinder article
  • Y10T428/24149 - Honeycomb-like
  • Y10T428/2457 - Parallel ribs and/or grooves
  • Y10T428/24744 - Longitudinal or transverse tubular cavity or cell

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 428 - Stock material or miscellaneous articles