2858767

Information

• Patent Grant
• 2858767

• References
• Source

• Patent Number

  2,858,767

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1958
  66 years ago

• CPC

  • F01L25/066 - piston or piston-rod being used as auxiliary valve
  • F04B9/1372 - the movement of each pump piston in the two directions is obtained by a double-acting piston fluid motor
  • F04B23/021 - the pump being immersed in the reservoir
  • F04B53/128 - Annular disc valves

• US Classifications

  • 417 - Pumps
  • 091 - Motors: expansible chamber type