3860221

Information

• Patent Grant
• 3860221

• References
• Source

• Patent Number

  3,860,221

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1975
  50 years ago

• CPC

  • F27B17/0016 - Chamber type furnaces
  • B22C9/043 - Removing the consumable pattern
  • B22C9/12 - Treating moulds or cores
  • F27B9/00 - Furnaces through which the charge is moved mechanically
  • F27B9/3005 - arrangements for circulating gases
  • F27B2009/3646 - Heating the ceiling or the walls for a reverberatory effect

• US Classifications

  • 266 - Metallurgical apparatus
  • 432 - Heating