3661216

Information

• Patent Grant
• 3661216

• References
• Source

• Patent Number

  3,661,216

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1972
  52 years ago

• CPC

  • E21B7/124 - with underwater tool drive prime mover
  • B25D9/08 - comprising a built-in air compressor
  • B25D9/265 - with arrangements for automatic stopping when the tool is lifted from the working face or suffers excessive bore resistance
  • B63C11/52 - Tools specially adapted for working underwater, not otherwise provided for
  • B25D2250/065 - Details regarding assembling of the tool
  • B25D2250/265 - Trigger mechanism in handle

• US Classifications

  • 173 - Tool driving or impacting
  • 092 - Expansible chamber devices