3478725

Information

• Patent Grant
• 3478725

• References
• Source

• Patent Number

  3,478,725

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1969
  55 years ago

• CPC

  • F22B1/22 - using combustion under pressure substantially exceeding atmospheric pressure
  • F22B1/1838 - the hot gas being under a high pressure
  • F22B33/14 - Combination of low and high pressure boilers

• US Classifications

  • 122 - Liquid heaters and vaporizers