3902665

Information

• Patent Grant
• 3902665

• References
• Source

• Patent Number

  3,902,665

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1975
  50 years ago

• CPC

  • B05B1/30 - designed to control volume of flow
  • B29C45/231 - Needle valve systems therefor
  • B29C2045/5096 - decompression of the moulding material by retraction or opposite rotation of the screw

• US Classifications

  • 239 - Fluid sprinkling, spraying, and diffusing
  • 425 - Plastic article or earthenware shaping or treating: apparatus