3481051

Information

• Patent Grant
• 3481051

• References
• Source

• Patent Number

  3,481,051

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1969
  55 years ago

• CPC

  • B31B19/64 - by applying heat or pressure
  • B29B13/023 - Half-products
  • B29C53/10 - of blown tubular films
  • B29C53/84 - Heating or cooling
  • B29C65/103 - direct heating both surfaces to be joined
  • B29C66/431 - Joining the articles to themselves
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/83411 - Roller, cylinder or drum types
  • B29C66/9141 - by controlling or regulating the temperature
  • B31B29/60 - and having means for uniting opposed surfaces or edges, or for taping
  • B29C35/06 - for articles of indefinite length
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/7352 - Thickness
  • B29C66/9121 - by measuring the temperature
  • B29C66/961 - involving a feedback loop mechanism
  • B31B2219/60 - Uniting opposed surfaces or edges Taping
  • B31B2219/6053 - Making seals parallel to the direction of movement
  • B31B2221/20 - the bags having structural provision at the base for thickness of content

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 156 - Adhesive bonding and miscellaneous chemical manufacture