2991506

Information

• Patent Grant
• 2991506

• References
• Source

• Patent Number

  2,991,506

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1961
  63 years ago

• CPC

  • B29C45/46 - Means for plasticising or homogenising the moulding material or forcing it into the mould
  • B29C45/03 - Injection moulding apparatus
  • B29C45/1711 - and removing excess material from the mould cavity by the introduced fluid
  • B29C2045/1731 - vacuum or underpressure for forming the hollow
  • Y10S425/812 - Venting

• US Classifications

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