3821963

Information

• Patent Grant
• 3821963

• References
• Source

• Patent Number

  3,821,963

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1974
  51 years ago

• CPC

  • B01F15/0218 - rotating or oscillating about an axis
  • A01C23/042 - Adding fertiliser to watering systems
  • F03C2/304 - having both the movements defined in sub-group F03C2/08 or F03C2/22 and relative reciprocation between members
  • F04B9/103 - having only one pumping chamber
  • F04B13/02 - of two or more fluids at the same time
  • F04B43/02 - having plate-like flexible members
  • G05D11/03 - without auxiliary power
  • Y10T137/2516 - Interconnected flow displacement elements

• US Classifications

  • 137 - Fluid handling
  • 417 - Pumps