3631870

Information

• Patent Grant
• 3631870

• References
• Source

• Patent Number

  3,631,870

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • F16L55/1003 - by introduction of paste, powder, particles, or the like
  • Y10T137/0318 - Processes
  • Y10T137/0391 - Affecting flow by the addition of material or energy
  • Y10T137/0441 - Repairing, securing, replacing, or servicing pipe joint, valve, or tank
  • Y10T137/0452 - Detecting or repairing leak
  • Y10T137/87676 - With flow control

• US Classifications

  • 137 - Fluid handling
  • 138 - Pipes and tubular conduits