3556429

Information

• Patent Grant
• 3556429

• References
• Source

• Patent Number

  3,556,429

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1971
  54 years ago

• CPC

  • F16L9/18 - Double-walled pipes Multi-channel pipes or pipe assemblies
  • B29C47/0028 - Multi-passage hollow articles
  • B29C47/12 - Extrusion nozzles or dies
  • B29C47/24 - with die parts rotatable relative to each other
  • B65H75/10 - without flanges
  • B65H75/148 - with at least one frustoconical end flange
  • B65H75/24 - adjustable in configuration
  • F16L9/04 - Reinforced pipes
  • F16L9/127 - the walls consisting of a single layer
  • B29C47/0023 - Hollow rigid articles having only one tubular passage
  • B29L2031/60 - Multitubular or multicompartmented articles
  • B65H2701/31 - Textiles threads or artificial strands of filaments

• US Classifications

  • 242 - Winding, tensioning, or guiding