2554481

Information

• Patent Grant
• 2554481

• References
• Source

• Patent Number

  2,554,481

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1951
  73 years ago

• CPC

  • F04B53/1005 - being formed by two closure members working in series
  • F04B53/1097 - with means for lifting the closure member for pump cleaning purposes
  • F16K15/042 - with a plurality of balls
  • Y10T137/7838 - Plural
  • Y10T137/88054 - Direct response normally closed valve limits direction of flow

• US Classifications

  • 137 - Fluid handling
  • 417 - Pumps