3321354

Information

• Patent Grant
• 3321354

• References
• Source

• Patent Number

  3,321,354

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1967
  59 years ago

• CPC

  • B31B19/64 - by applying heat or pressure
  • B29C65/02 - by heating, with or without pressure
  • B29C65/7891 - of discontinuously moving sheets or webs
  • B29C66/346 - Making joints having variable thicknesses in the joint area
  • B29C66/3464 - by preheating
  • B29C66/4312 - for making flat seams in tubular or hollow articles
  • B31B23/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs
  • B29C65/18 - using heated tools
  • B29C66/8511 - Bag making machines
  • B29C2793/009 - after shaping
  • B29L2031/7128 - Bags, sacks, sachets
  • B31B2219/603 - by applying heat or pressure
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content
  • B31B2237/60 - starting from tubular webs
  • Y10T156/12 - Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing

• US Classifications

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