3734139

Information

• Patent Grant
• 3734139

• References
• Source

• Patent Number

  3,734,139

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1973
  51 years ago

• CPC

  • F16L9/133 - the walls consisting of two layers
  • B29C37/0085 - by means of openings in the layers
  • B29C63/18 - using tubular layers or sheathings
  • B29C65/18 - using heated tools
  • B29C65/305 - involving the use of cartridge heaters
  • B29C65/48 - using adhesives
  • B29C66/0342 - Cooling
  • B29C66/52272 - concentrically
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/74 - Joining plastics material to non-plastics material
  • B29C66/8264 - using the thermal expansion of the parts to be joined
  • B29C66/8284 - using the thermal expansion of the joining tool
  • B29C66/91411 - of the parts to be joined
  • B29C66/91421 - of the joining tools
  • B29C66/91443 - following a temperature-time profile
  • B29C66/91921 - in explicit relation to another temperature
  • B29C66/91931 - in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
  • B29C66/91951 - in explicit relation to time
  • B29C66/9241 - by controlling or regulating the pressure, the force or the mechanical power
  • B29C66/929 - characterized by specific pressure, force, mechanical power or displacement values or ranges
  • F16L9/12 - of plastics with or without reinforcement
  • B29C66/742 - to metals or their alloys
  • B29C66/8122 - characterised by the composition of the material constituting the pressing elements
  • B29C66/81261 - Thermal properties
  • B29C66/9141 - by controlling or regulating the temperature
  • B29C66/91445 - by steps
  • B29C66/919 - characterised by specific temperature, heat or thermal flux values or ranges
  • B29K2027/18 - PTFE, i.e. polytetrafluorethene
  • B29K2705/02 - Aluminium
  • B29K2705/12 - Iron
  • B29L2031/324 - Rollers or cylinders having an axial length of several times the diameter
  • Y10S138/03 - Polytetrafluoroethylene

• US Classifications

  • 138 - Pipes and tubular conduits