3409074

Information

• Patent Grant
• 3409074

• References
• Source

• Patent Number

  3,409,074

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1968
  56 years ago

• CPC

  • F28D7/0083 - with units having particular arrangement relative to a supplementary heat exchange medium
  • F22B1/1838 - the hot gas being under a high pressure
  • F22B1/1884 - Hot gas heating tube boilers with one or more heating tubes
  • F22B11/04 - the fire tubes being in horizontal arrangement
  • F28D7/0066 - Multi-circuit heat-exchangers

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing