3249124

Information

• Patent Grant
• 3249124

• References
• Source

• Patent Number

  3,249,124

• Date Filed

  Not available

• Date Issued

  Tuesday, May 3, 1966
  58 years ago

• CPC

  • E21B34/12 - operated by movement of casings or tubings
  • E21B21/10 - Valve arrangements in drilling fluid circulation systems
  • E21B2034/005 - Flapper valves
  • Y10T137/86936 - Pressure equalizing or auxiliary shunt flow
  • Y10T137/86992 - With subsequent closing of first opened port
  • Y10T137/87016 - Lost motion

• US Classifications

  • 137 - Fluid handling
  • 166 - Wells
  • 251 - Valves and valve actuation