2587893

Information

• Patent Grant
• 2587893

• References
• Source

• Patent Number

  2,587,893

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1952
  72 years ago

• CPC

  • E21B17/006 - Accessories for drilling pipes
  • Y10T24/44068 - having gripping member actuated by fluid force
  • Y10T279/1283 - Fluid pressure directly moves jaws
  • Y10T279/1946 - Rack-and-pinion actuated

• US Classifications

  • 279 - Chucks or sockets
  • 024 - Buckles, buttons, clasps, etc.
  • 060 - Power plants
  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices
  • 414 - Material or article handling