3719437

Information

• Patent Grant
• 3719437

• References
• Source

• Patent Number

  3,719,437

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1973
  51 years ago

• CPC

  • F04B7/04 - in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
  • F04B7/0073 - the member being of the lost-motion type
  • F04B15/02 - the fluids being viscous or non-homogeneous
  • F04B23/023 - only the pump-part being immersed, the driving-part being outside the reservoir
  • 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

• US Classifications

  • 417 - Pumps