3663338

Information

• Patent Grant
• 3663338

• References
• Source

• Patent Number

  3,663,338

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • B31B19/64 - by applying heat or pressure
  • B31B19/26 - and having means for folding sheets, blanks, or webs
  • B31B19/36 - by continuously feeding same to stationary members
  • B31B19/92 - Delivering
  • 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
  • B31B2219/2627 - by continuously feeding same to stationary members
  • B31B2219/2681 - involving longitudinally folding
  • B31B2219/603 - by applying heat or pressure
  • B31B2219/92 - Delivering
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content
  • B31B2237/40 - involving folding webs longitudinally
  • B31B2237/406 - the bags having their openings facing transversally to the direction of movement
  • Y10T156/1054 - and simultaneously bonding [e.g., cut-seaming]
  • Y10T156/1313 - Cutting element simultaneously bonds [e.g., cut seaming]

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture