2565274

Information

• Patent Grant
• 2565274

• References
• Source

• Patent Number

  2,565,274

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1951
  73 years ago

• CPC

  • E21B17/006 - Accessories for drilling pipes
  • E21B17/1042 - Elastomer protector or centering means
  • E21B17/12 - Devices for placing or drawing out wear protectors
  • Y10T82/16 - Severing or cut-off
  • Y10T83/8771 - Motion direction of tool influenced by resistance of work
  • Y10T83/9454 - Reciprocable type
  • Y10T408/892 - with work-engaging structure detachable from cutting edge
  • Y10T408/895 - Having axial, core-receiving central portion

• US Classifications

  • 082 - Turning
  • 030 - Cutlery
  • 083 - Cutting
  • 408 - Cutting by use of rotating axially moving tool