3778089

Information

• Patent Grant
• 3778089

• References
• Source

• Patent Number

  3,778,089

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • F16L15/003 - with sealing rings
  • E21B17/01 - Risers
  • E21B17/20 - Flexible or articulated drilling pipes
  • F16L15/008 - with sealing rings
  • F16L27/0841 - forming an angle of less than 90 degrees
  • F16L39/04 - allowing adjustment or movement

• US Classifications

  • 285 - Pipe joints or couplings