1547759

Information

• Patent Grant
• 1547759

• References
• Source

• Patent Number

  1,547,759

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1925
  99 years ago

• CPC

  • E21B17/046 - with ribs, pins or jaws, and complementary grooves or the like
  • Y10S285/922 - Safety and quick release for drill pipes
  • Y10S411/961 - Pawl and ratchet
  • Y10T70/5593 - Movably seating
  • Y10T279/17941 - Nut lock
  • Y10T292/0891 - Rigid

• US Classifications

  • 285 - Pipe joints or couplings
  • 070 - Locks
  • 279 - Chucks or sockets
  • 292 - Closure fasteners
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener