3822039

Information

• Patent Grant
• 3822039

• References
• Source

• Patent Number

  3,822,039

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1974
  50 years ago

• CPC

  • F23N5/143 - using electronic means
  • F23N2035/14 - electromagnetically operated
  • F23N2035/16 - variable flow or proportional valves

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 237 - Heating systems
  • 251 - Valves and valve actuation
  • 361 - Electricity: electrical systems and devices