3177902

Information

• Patent Grant
• 3177902

• References
• Source

• Patent Number

  3,177,902

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1965
  59 years ago

• CPC

  • F16L58/02 - by means of internal or external coatings
  • B28B21/64 - Winding arrangements
  • B28B23/046 - Post treatment to obtain pre-stressed articles
  • B29C41/042 - by rotating a mould around its axis of symmetry
  • B29C41/085 - by rotating the former around its axis of symmetry
  • B29C53/805 - Applying axial reinforcements
  • B29C63/0021 - with coherent impregnated reinforcing layers
  • B29C63/32 - by winding helically
  • B29C70/326 - by rotating the mould around its axis of symmetry
  • F16L9/08 - of concrete, cement, or asbestos cement, with or without reinforcement
  • F16L25/0027 - Joints for pipes made of reinforced concrete
  • B29K2105/12 - of short lengths
  • Y10S52/07 - Synthetic building materials, reinforcements and equivalents

• US Classifications

  • 138 - Pipes and tubular conduits
  • 052 - Static structures
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 285 - Pipe joints or couplings