3521700

Information

• Patent Grant
• 3521700

• References
• Source

• Patent Number

  3,521,700

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1970
  55 years ago

• CPC

  • F24D5/12 - using heat pumps
  • 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

• US Classifications

  • 165 - Heat exchange