3718409

Information

• Patent Grant
• 3718409

• References
• Source

• Patent Number

  3,718,409

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 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
  • F01L25/063 - the auxiliary valve being actuated by the working motor-piston or piston-rod
  • F04B9/1378 - the movement in the other direction being obtained by an hydraulic connection between the fluid motor cylinders

• US Classifications

  • 417 - Pumps