3580226

Information

• Patent Grant
• 3580226

• References
• Source

• Patent Number

  3,580,226

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • F22G5/06 - by recirculating flue gases
  • F16B39/30 - Locking exclusively by special shape of the screw-thread
  • F22G5/04 - by regulating flue gas flow

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 110 - Furnaces