3917285

Information

• Patent Grant
• 3917285

• References
• Source

• Patent Number

  3,917,285

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  49 years ago

• CPC

  • F16L21/025 - Rolling sealing rings
  • F16L13/113 - for concrete pipes
  • F16L21/05 - comprising a first ring being placed on a male part and a second ring in the sleeve or socket
  • F16L58/185 - for joints with sleeve or socket
  • Y10S277/944 - Elastomer or plastic
  • Y10S285/915 - Mastic

• US Classifications

  • 277 - Seal for a joint or juncture
  • 285 - Pipe joints or couplings