3618919

Information

• Patent Grant
• 3618919

• References
• Source

• Patent Number

  3,618,919

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1971
  53 years ago

• CPC

  • F27D99/0075 - Gas curtain seals
  • B01J6/00 - Heat treatments such as Calcining Fusing Pyrolysis
  • C21D1/74 - Methods of treatment in inert gas, controlled atmosphere, vacuum, or pulverulent material
  • F27B9/028 - Multi-chamber type furnaces
  • F27B9/082 - Muffle furnaces
  • F27D2001/1891 - Doors for separating two chambers in the furnace

• US Classifications

  • 432 - Heating
  • 034 - Drying and gas or vapor contact with solids