3474834

Information

• Patent Grant
• 3474834

• References
• Source

• Patent Number

  3,474,834

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • F16L9/14 - Compound tubes
  • F16L9/00 - Rigid pipes
  • F16L21/02 - with elastic sealing rings between pipe and sleeve or between pipe and socket
  • F16L21/05 - comprising a first ring being placed on a male part and a second ring in the sleeve or socket
  • F16L25/0027 - Joints for pipes made of reinforced concrete

• US Classifications

  • 138 - Pipes and tubular conduits
  • 277 - Seal for a joint or juncture
  • 285 - Pipe joints or couplings