2821993

Information

• Patent Grant
• 2821993

• References
• Source

• Patent Number

  2,821,993

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1958
  67 years ago

• CPC

  • B67D7/66 - of rotary type
  • B67D7/68 - submerged in storage tank or reservoir
  • B67D7/763 - of air separators
  • B67D7/78 - Arrangements of storage tanks, reservoirs or pipe-lines
  • Y10T137/2856 - With leakage or entrained air removal
  • Y10T137/85954 - Closed circulating system

• US Classifications

  • 137 - Fluid handling
  • 222 - Dispensing
  • 417 - Pumps