3680776

Information

• Patent Grant
• 3680776

• References
• Source

• Patent Number

  3,680,776

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  52 years ago

• CPC

  • F24F11/00 - Control or safety systems or apparatus
  • F15C1/008 - Other applications
  • F15C1/22 - Oscillators
  • F24F11/0012 - Air temperature
  • F24F11/04 - solely for controlling the rate of air-flow
  • F24F2003/005 - with a single air duct for transporting treated primary air from the central station to air treatment units located in or near the rooms
  • F24F2221/54 - Heating and cooling, simultaneously or alternatively
  • Y10T137/2071 - And causing change or correction of sensed condition

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 137 - Fluid handling
  • 165 - Heat exchange