2781547

Information

• Patent Grant
• 2781547

• References
• Source

• Patent Number

  2,781,547

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1957
  67 years ago

• CPC

  • B29C45/7613 - the termination of flow of material into the mould
  • B29C45/561 - Injection-compression moulding
  • B29C45/572 - using movable mould wall or runner parts
  • B29C45/73 - of the mould
  • B29C2045/563 - Enlarging the mould cavity during injection
  • B29C2045/5635 - Mould integrated compression drive means
  • B29C2045/5645 - Resilient compression means
  • Y10S425/004 - Back pressure

• US Classifications

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