3552421

Information

• Patent Grant
• 3552421

• References
• Source

• Patent Number

  3,552,421

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1971
  54 years ago

• CPC

  • F16K41/023 - for spindles which only rotate
  • F16K43/00 - Auxiliary closure means in valves, which in case of repair
  • Y10T137/6133 - Combined rotary and longitudinal movement of valve

• US Classifications

  • 137 - Fluid handling
  • 251 - Valves and valve actuation