3620556

Information

• Patent Grant
• 3620556

• References
• Source

• Patent Number

  3,620,556

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • F16L23/18 - the sealing means being rings
  • F16J15/025 - and with at least one flexible lip
  • F16L17/067 - Plastics sealing rings
  • F16L23/22 - made exclusively of a material other than metal

• US Classifications

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