2680880

Information

• Patent Grant
• 2680880

• References
• Source

• Patent Number

  2,680,880

• Date Filed

  Not available

• Date Issued

  Tuesday, June 15, 1954
  70 years ago

• CPC

  • B29C47/367 - using a screw extruder and a gear pump
  • B29C45/541 - using a hollow plasticising screw co-operating with a coaxial injection ram
  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/364 - using gear pumps
  • B29C47/368 - using a screw extruder and a ram or piston
  • B29C47/38 - using screws surrounded by a cooperating barrel
  • B29C2045/465 - using pumps for injecting the material into the mould
  • Y10S100/904 - Screw

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 100 - Presses