3848629

Information

• Patent Grant
• 3848629

• References
• Source

• Patent Number

  3,848,629

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1974
  50 years ago

• CPC

  • E21B34/08 - responsive to flow or pressure of the fluid obtained
  • Y10T137/7726 - Responsive to change in rate of flow
  • Y10T137/7731 - Fluid counter-biased or unseated valve
  • Y10T137/7733 - With fluid pressure seating of valve

• US Classifications

  • 137 - Fluid handling