3459950

Information

• Patent Grant
• 3459950

• References
• Source

• Patent Number

  3,459,950

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1969
  56 years ago

• CPC

  • B29C66/83533 - Cooperating jaws mounted on cooperating chains and moving in a closed path
  • B29C65/18 - using heated tools
  • B29C66/4312 - for making flat seams in tubular or hollow articles
  • B29C66/8226 - Cam mechanisms; Wedges; Eccentric mechanisms
  • B31B19/64 - by applying heat or pressure
  • 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
  • B29K2101/12 - Thermoplastic materials
  • B31B2219/142 - using tools mounted on belts or chains
  • B31B2219/6038 - using sealing jaws or sealing dies
  • B31B2219/6076 - using tools mounted on a drum
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content

• US Classifications

  • 250 - Radiant energy
  • 219 - Electric heating