3581649

Information

• Patent Grant
• 3581649

• References
• Source

• Patent Number

  3,581,649

• Date Filed

  Not available

• Date Issued

  Tuesday, June 1, 1971
  53 years ago

• CPC

  • F24J2/0444 - in the form of a façade construction
  • A01K1/0064 - Construction of air inlets or outlets in walls
  • F24F12/001 - with heat-exchange between supplied and exhausted air
  • Y02B10/20 - Solar thermal
  • Y02B30/563 - Air to air
  • Y02E10/44 - Heat exchange systems
  • Y02P60/54 - Environmental control in livestock or poultry housing
  • Y02P60/542 - using renewable energy

• US Classifications

  • 165 - Heat exchange
  • 454 - Ventilation