3909499

Information

• Patent Grant
• 3909499

• References
• Source

• Patent Number

  3,909,499

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1975
  49 years ago

• CPC

  • F27D25/001 - comprising breaking tools
  • F27B3/085 - Arc furnaces
  • F27B3/16 - Walls Roofs
  • F27B3/183 - Charging of arc furnaces vertically through the roof
  • F27D99/0073 - Seals
  • F27D2003/0083 - Means for stirring the charge
  • F27D2003/0087 - Rotation about a vertical axis

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 266 - Metallurgical apparatus