3486570

Information

• Patent Grant
• 3486570

• References
• Source

• Patent Number

  3,486,570

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1969
  55 years ago

• CPC

  • E21B49/02 - by mechanically taking samples of the soil
  • E02F3/90 - Component parts
  • E02F3/9218 - with jets
  • E02F3/9287 - Vibrating suction heads
  • E21B7/128 - from floating support with independent underwater anchored guide base
  • E21B7/185 - underwater
  • E21B7/20 - Driving or forcing casings or pipes into boreholes

• US Classifications

  • 175 - Boring or penetrating the earth