3819777

Information

• Patent Grant
• 3819777

• References
• Source

• Patent Number

  3,819,777

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • B29C47/70 - Flow dividers
  • B29C47/366 - using a first screw extruder and a second screw extruder
  • B29C47/86 - at nozzle zone
  • B29C47/862 - heating
  • B29C47/92 - Measuring, controlling or regulating
  • G05D11/136 - by sensing the viscosity
  • G05D23/27535 - Details of the sensing element
  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/0026 - Hollow flexible articles
  • B29C47/20 - with annular opening
  • B29C47/30 - Multi-port extrusion nozzles
  • B29C2947/92019 - Pressure
  • B29C2947/92409 - Die Nozzle zone
  • B29C2947/92704 - Temperature
  • B29C2947/92904 - Die Nozzle zone

• US Classifications

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