3905747

Information

• Patent Grant
• 3905747

• References
• Source

• Patent Number

  3,905,747

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  49 years ago

• CPC

  • F23Q9/12 - to permit the supply to the main burner in dependence upon existence of pilot flame
  • F23N5/025 - using electrical or electromechanical means

• US Classifications

  • 431 - Combustion
  • 236 - Automatic temperature and humidity regulation
  • 251 - Valves and valve actuation