3324875

Information

• Patent Grant
• 3324875

• References
• Source

• Patent Number

  3,324,875

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1967
  57 years ago

• CPC

  • E21B34/04 - in underwater well heads
  • E21B33/0375 - Corrosion protection means
  • E21B43/01 - specially adapted for obtaining from underwater installations
  • F16K31/04 - using a motor
  • Y10T137/402 - Distribution systems involving geographic features
  • Y10T137/7043 - Guards and shields
  • Y10T137/8158 - With indicator, register, recorder, alarm or inspection means

• US Classifications

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