3213831

Information

• Patent Grant
• 3213831

• References
• Source

• Patent Number

  3,213,831

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1965
  59 years ago

• CPC

  • F22B21/345 - with a tube bundle between an upper and a lower drum in the convection pass
  • F22G1/16 - by using a separate heat source independent from heat supply of the steam boiler
  • F23G5/46 - Recuperation of heat

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 159 - Concentrating evaporators