1391381

Information

• Patent Grant
• 1391381

• References
• Source

• Patent Number

  1,391,381

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1921
  103 years ago

• CPC

  • F23B80/04 - by means for guiding the flow of flue gases
  • F23B50/10 - with the combustion zone at the bottom of fuel-filled conduits ending at the surface of a fuel bed
  • F23B90/00 - Combustion methods not related to a particular type of apparatus
  • F23B90/04 - including secondary combustion
  • F23B2700/01 - adapted for boilers built up from sections

• US Classifications

  • 122 - Liquid heaters and vaporizers