220189

Information

• Patent Grant
• 220189

• References
• Source

• Patent Number

  220,189

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1879
  145 years ago

• CPC

  • F26B3/28 - by radiation
  • A23B7/0205 - by contact of the material with fluids
  • A23N12/08 - for drying or roasting
  • F26B3/04 - the gas or vapour circulating over or surrounding the materials or objects to be dried
  • F26B9/066 - the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls
  • F26B21/005 - Drying-steam generating means

• US Classifications

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