3376834

Information

• Patent Grant
• 3376834

• References
• Source

• Patent Number

  3,376,834

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1968
  56 years ago

• CPC

  • F24D5/00 - Hot-air central heating systems Exhaust gas central heating systems
  • E04B1/7612 - in combination with an air space
  • E04F17/02 - for carrying away waste gases
  • F16L59/00 - Thermal insulation in general
  • F16L59/04 - Arrangements using dry fillers
  • F16L59/06 - Arrangements using an air layer or vacuum
  • F16L59/16 - Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
  • F23J13/025 - composed of concentric elements
  • F23L15/00 - Heating of air supplied for combustion
  • F23M5/085 - using air or other gas as the cooling medium
  • F23J2211/10 - Balanced flues (combining air supply and flue gas exhaust)
  • F23J2211/101 - with coaxial duct arrangement
  • F23J2211/30 - Chimney or flue associated with building ventilation system
  • F23J2213/40 - Heat insulation fittings

• US Classifications

  • 110 - Furnaces
  • 431 - Combustion
  • 454 - Ventilation