3084898

Information

• Patent Grant
• 3084898

• References
• Source

• Patent Number

  3,084,898

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1963
  61 years ago

• CPC

  • E21B33/06 - Blow-out preventers, i.e. apparatus closing around a drill pipe
  • F16K31/122 - the fluid acting on a piston
  • Y10T137/87418 - Balanced valve
  • Y10T137/87499 - Fluid actuated or retarded
  • Y10T279/17231 - Pivoted jaws

• US Classifications

  • 251 - Valves and valve actuation
  • 137 - Fluid handling
  • 166 - Wells
  • 277 - Seal for a joint or juncture
  • 279 - Chucks or sockets