3901275

Information

• Patent Grant
• 3901275

• References
• Source

• Patent Number

  3,901,275

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1975
  50 years ago

• CPC

  • F24F13/04 - Air mixing units
  • F16K11/052 - with pivoted closure members
  • F24F3/0522 - in which warm or cold air from the central station is delivered via individual pipes to mixing chambers in the space to be treated, the cold air/warm air ratio being controlled by a thermostat in the space concerned
  • F24F11/04 - solely for controlling the rate of air-flow
  • F24F13/15 - with parallel simultaneously tiltable lamellae
  • Y10T137/87281 - System having plural inlets
  • Y10T137/87475 - Adjacent plate valves always parallel
  • Y10T137/87692 - With common valve operator

• US Classifications

  • 137 - Fluid handling
  • 454 - Ventilation