3780764

Information

• Patent Grant
• 3780764

• References
• Source

• Patent Number

  3,780,764

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  52 years ago

• CPC

  • B29C45/231 - Needle valve systems therefor
  • B29C45/581 - Devices for influencing the material flow
  • B29C2045/2893 - Multiple coaxial needle valves
  • Y10S264/83 - Injection molding of polyolefin-type foam
  • Y10T137/87917 - Flow path with serial valves and/or closures

• US Classifications

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