3509939

Information

• Patent Grant
• 3509939

• References
• Source

• Patent Number

  3,509,939

• Date Filed

  Not available

• Date Issued

  Tuesday, May 5, 1970
  54 years ago

• CPC

  • F22B1/22 - using combustion under pressure substantially exceeding atmospheric pressure
  • F22B1/16 - the heat carrier being hot liquid or hot vapour
  • F22B21/26 - bent helically
  • F22B37/205 - Supporting and spacing arrangements for tubes of a tube bundle
  • Y10S165/414 - for supporting coil tubes

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers