3724493

Information

• Patent Grant
• 3724493

• References
• Source

• Patent Number

  3,724,493

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1973
  52 years ago

• CPC

  • E21B34/08 - responsive to flow or pressure of the fluid obtained
  • E21B2034/002 - Ball valves
  • Y10T137/7726 - Responsive to change in rate of flow
  • Y10T137/7732 - With mechanical stop against reopening

• US Classifications

  • 137 - Fluid handling
  • 166 - Wells