3012404

Information

• Patent Grant
• 3012404

• References
• Source

• Patent Number

  3,012,404

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1961
  63 years ago

• CPC

  • F04B53/122 - the piston being free-floating
  • E21D15/45 - having closed fluid system
  • E21D15/603 - by means of hydraulic devices
  • E21D23/0069 - without essential advancing shifting devices

• US Classifications

  • 060 - Power plants
  • 092 - Expansible chamber devices
  • 417 - Pumps