3700854

Information

• Patent Grant
• 3700854

• References
• Source

• Patent Number

  3,700,854

• Date Filed

  Not available

• Date Issued

  Tuesday, October 24, 1972
  52 years ago

• CPC

  • B29C65/18 - using heated tools
  • B29C66/4312 - for making flat seams in tubular or hollow articles
  • B29C66/93431 - the speed being kept constant over time
  • B29C66/93451 - by controlling or regulating the rotational speed
  • 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
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content
  • B31B2237/60 - starting from tubular webs
  • Y10S53/01 - Bacon and franks packaging

• US Classifications

  • 219 - Electric heating
  • 053 - Package making