3720858

Information

• Patent Grant
• 3720858

• References
• Source

• Patent Number

  3,720,858

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • F23N5/203 - using electronic means
  • F23N5/102 - using electronic means
  • F23N5/10 - using thermocouples
  • F23N5/20 - with a time programme acting through electrical means
  • F23N2023/26 - with capacitors
  • F23N2023/28 - with more than one timing element
  • F23N2025/08 - temperature
  • F23N2027/28 - Ignition circuits
  • F23N2027/38 - Electrical resistance ignition
  • F23N2029/00 - Flame sensors
  • F23N2031/06 - for flame failures
  • F23N2031/12 - for ignition failures
  • Y02E20/344 - Oxyfuel combustion
  • Y10T307/773 - Light, heat, vibratory or radiant energy
  • Y10T307/951 - With time delay or retardation means

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 340 - Communications: electrical