3690634

Information

• Patent Grant
• 3690634

• References
• Source

• Patent Number

  3,690,634

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • F27D27/00 - Stirring devices for molten material
  • C21B11/06 - in rotary kilns
  • C21B13/0006 - obtaining iron or steel in a molten state
  • C21B13/08 - in rotary furnaces
  • C21C1/00 - Refining of pig-iron Cast iron
  • C21C5/562 - starting from scrap
  • C22B7/002 - by treating with halogens, sulfur or compounds thereof; by carburising, by treating with hydrogen (hydriding)
  • C22B7/003 - only remelting
  • C21C5/5217 - equipped with burners or devices for injecting gas
  • F27D2003/0038 - comprising shakers
  • F27D2003/0087 - Rotation about a vertical axis
  • Y02P10/136 - using hydrogen
  • Y02P10/216 - of Fe
  • Y10S266/90 - Metal melting furnaces

• US Classifications

  • 266 - Metallurgical apparatus