3139867

Information

• Patent Grant
• 3139867

• References
• Source

• Patent Number

  3,139,867

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1964
  60 years ago

• CPC

  • F24H6/00 - Combined water and air heaters
  • F22B21/24 - bent in serpentine or sinuous form
  • F22B37/22 - Drums Headers Accessories therefor
  • F23M5/00 - Casings Linings Walls
  • F24D3/08 - in combination with systems for domestic hot-water supply
  • F24H1/52 - incorporating heat exchangers for domestic water
  • F23M2700/005 - Structures of combustion chambers or smoke ducts

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 165 - Heat exchange
  • 236 - Automatic temperature and humidity regulation
  • 237 - Heating systems