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Airflow control system

  • US 8,348,732 B2
  • Filed: 12/14/2006
  • Issued: 01/08/2013
  • Est. Priority Date: 11/12/2004
  • Status: Expired due to Fees
First Claim
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1. A method for controlling an environmental condition in a first location and a second location, the method comprising:

  • placing a first flow control device within the first location and a second flow control device within the second location;

    controlling the environmental condition in each location by autonomously controlling airflow through each flow control device;

    sending a signal from the first flow control device to the second flow control device via a duct system that interconnects the flow control devices; and

    detecting the signal in the second flow control device and adjusting the airflow through the second flow control device.

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