3459840

Information

• Patent Grant
• 3459840

• References
• Source

• Patent Number

  3,459,840

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1969
  55 years ago

• CPC

  • B29C47/38 - using screws surrounded by a cooperating barrel
  • B29C47/0004 - characterised by the choice of material
  • B29C47/6037 - having reverse feeding elements
  • B29C47/725 - for plasticising or homogenising devices
  • B29C47/76 - Venting, drying or degassing means
  • B29C47/92 - Measuring, controlling or regulating
  • B29C47/0009 - characterised by the shape of the articles
  • B29C2947/92019 - Pressure
  • B29C2947/92104 - Flow or feed rate
  • B29C2947/92314 - Particular value claimed
  • B29C2947/92466 - Auxiliary unit
  • B29C2947/92704 - Temperature
  • B29C2947/92809 - Particular value claimed
  • B29C2947/92895 - Barrel or housing
  • B29K2077/00 - Use of PA, i.e. polyamides

• US Classifications

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