3401946

Information

• Patent Grant
• 3401946

• References
• Source

• Patent Number

  3,401,946

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1968
  56 years ago

• CPC

  • F16L17/10 - the packing being sealed by the pressure of a fluid other than the fluid in or surrounding the pipe
  • E21B33/1277 - characterised by the construction or fixation of the sleeve
  • E21D5/12 - Accessories for making shaft linings
  • F16K7/10 - with inflatable member

• US Classifications

  • 277 - Seal for a joint or juncture
  • 251 - Valves and valve actuation
  • 299 - Mining or in situ disintegration of hard material