3470917

Information

• Patent Grant
• 3470917

• References
• Source

• Patent Number

  3,470,917

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1969
  55 years ago

• CPC

  • B29C53/60 - using internal forming surfaces
  • B29C41/085 - by rotating the former around its axis of symmetry
  • B29C53/582 - comprising reinforcements
  • B29C69/003 - and cutting longitudinally
  • B29C70/025 - with particular filler
  • B29C70/16 - using fibres of substantial or continuous length
  • B29C70/20 - oriented in a single direction
  • B29C70/207 - arranged in parallel planes of fibres crossing at substantial angles
  • D04H3/04 - in rectilinear paths
  • F16L9/12 - of plastics with or without reinforcement
  • F16L9/16 - wound from sheets or strips, with or without reinforcement
  • F16L11/08 - with reinforcements embedded in the wall
  • F16L11/083 - three or more layers
  • 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
  • F16L59/027 - Bands, cords, strips or the like for helically winding around a cylindrical object
  • B29K2105/108 - arranged in parallel planes and crossing at substantial angles
  • B29K2105/16 - Fillers
  • B29L2007/007 - Narrow strips
  • B29L2023/22 - Tubes or pipes

• US Classifications

  • 138 - Pipes and tubular conduits
  • 156 - Adhesive bonding and miscellaneous chemical manufacture