2953976

Information

• Patent Grant
• 2953976

• References
• Source

• Patent Number

  2,953,976

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1960
  64 years ago

• CPC

  • B29C66/0342 - Cooling
  • B29C53/48 - for articles of indefinite length
  • B29C65/1432 - direct heating of the surfaces to be joined
  • B29C65/20 - with direct contact
  • B29C66/003 - Protecting areas of the parts to be joined from overheating
  • B29C66/004 - Preventing sticking together
  • B29C66/1122 - Single lap to lap joints
  • B29C66/431 - Joining the articles to themselves
  • B29C66/4322 - by joining a single sheet to itself
  • B29C66/72328 - Paper
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/80 - General aspects of machine operations or constructions and parts thereof
  • B29C66/818 - characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
  • B29C66/8181 - characterised by the cooling constructional aspects
  • B29C66/83413 - cooperating rollers, cylinders or drums
  • B29C66/8511 - Bag making machines
  • B29C66/8744 - Preventing overheating of the parts to be joined
  • B29C66/87441 - by lowering or shutting down the power supply
  • B29C66/932 - by measuring the speed
  • B31B19/64 - by applying heat or pressure
  • B31B37/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents from webs
  • B29C53/36 - Bending and joining
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/934 - by controlling or regulating the speed
  • B29C2035/1658 - using gas
  • B29K2711/123 - Coated
  • B29L2009/00 - Layered products
  • B29L2009/001 - the layers being loose
  • B29L2031/7128 - Bags, sacks, sachets
  • B31B2219/269 - involving gusset-forming
  • B31B2219/6053 - Making seals parallel to the direction of movement
  • B31B2237/05 - the bags having multilayered walls

• US Classifications

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