3812228

Information

• Patent Grant
• 3812228

• References
• Source

• Patent Number

  3,812,228

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • B29C44/424 - Details of machines
  • B29C44/425 - Valve or nozzle constructions; Details of injection devices
  • B29C44/581 - Closure devices for pour holes
  • B29C45/2725 - Manifolds
  • B29C45/2803 - comprising a member with an opening or the injection nozzle movable into or out of alignment with the sprue channel or mould gate
  • B29C45/2701 - Details not specific to hot or cold runner channels
  • B29C2045/2733 - Inserts, plugs, bushings
  • B29C2045/2762 - Seals between nozzle and manifold
  • B29C2045/277 - Spacer means or pressure pads between manifold and mould plates
  • B29C2045/2791 - Alignment means between nozzle and manifold
  • Y10S264/05 - Use of one or more blowing agents together
  • Y10S264/14 - forming integral skin on a foamed product
  • Y10S264/83 - Injection molding of polyolefin-type foam

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes