3809412

Information

• Patent Grant
• 3809412

• References
• Source

• Patent Number

  3,809,412

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • F16L21/025 - Rolling sealing rings
  • F16L21/005 - made of elastic material
  • F16L37/084 - combined with automatic locking
  • F16L47/065 - with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket, the sealing rings being placed previously on the male part
  • F16L49/02 - Joints with a sleeve or socket
  • H02G9/06 - in underground tubes or conduits Tubes or conduits therefor
  • Y10S285/915 - Mastic
  • Y10S285/918 - O-ring
  • Y10S285/921 - Snap-fit

• US Classifications

  • 285 - Pipe joints or couplings