3884447

Information

• Patent Grant
• 3884447

• References
• Source

• Patent Number

  3,884,447

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1975
  49 years ago

• CPC

  • F16K15/145 - the closure elements being shaped as a solids of revolution
  • F16K1/40 - of helical shape
  • Y10S251/902 - Springs employed as valves
  • Y10T137/7879 - Resilient material valve

• US Classifications

  • 251 - Valves and valve actuation
  • 137 - Fluid handling
  • 267 - Spring devices