3553788

Information

• Patent Grant
• 3553788

• References
• Source

• Patent Number

  3,553,788

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1971
  53 years ago

• CPC

  • B29C45/2806 - consisting of needle valve systems
  • B29C45/27 - Sprue channels Runner channels or runner nozzles
  • B29C2045/2774 - The nozzle head or the collar portion and central portion being made of different parts or materials
  • B29C2045/2798 - for compensating thermal expansion
  • B29C2045/2827 - Needle valves driven by an annular piston mounted around the nozzle

• US Classifications

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