3220351

Information

• Patent Grant
• 3220351

• References
• Source

• Patent Number

  3,220,351

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • F04B53/00 - Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
  • F04B53/1005 - being formed by two closure members working in series
  • F04B53/108 - Valves characterised by the material
  • F04B53/14 - Pistons, piston-rods or piston-rod connections
  • F04B53/162 - Adaptations of cylinders
  • F04B53/164 - Stoffing boxes
  • Y10T137/791 - Ball valves

• US Classifications

  • 417 - Pumps
  • 137 - Fluid handling