3643917

Information

• Patent Grant
• 3643917

• References
• Source

• Patent Number

  3,643,917

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • F16K31/50 - with screw-spindle or internally threaded actuating means
  • F16L55/00 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems
  • Y10T137/6181 - Successively used adjacent independent elements

• US Classifications

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