3540870

Information

• Patent Grant
• 3540870

• References
• Source

• Patent Number

  3,540,870

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1970
  54 years ago

• CPC

  • C03B37/029 - Furnaces therefor
  • C03B37/027 - Fibres composed of different sorts of glass
  • C03C25/22 - Depositing from the vapour phase
  • C03C25/42 - Coatings containing inorganic materials
  • C03B2205/64 - Induction furnaces, i.e. HF/RF coil
  • C03B2205/72 - Controlling or measuring the draw furnace temperature
  • C03B2205/80 - Means for sealing the preform entry or upper end of the furnace
  • C03B2205/92 - using means for gradually reducing the cross-section towards the outlet or around the preform draw end
  • Y10S65/08 - Quartz

• US Classifications

  • 065 - Glass manufacturing
  • 118 - Coating apparatus