Remotely controlled electrically actuated air flow control register

An airflow controllable register for controlling flow of air through the register from a register airflow supply duct in response to an externally provide control signal that commands said register airflow control unit to provide differing airflow rates through said register, said airflow controllable register comprising:

• a register flow control means having an electric power generating means that includes a rotary mounted air turbine positioned within said register airflow supply duct, said air turbine drivingly coupled to a generator to drive the same upon airflow against blades of said turbine, said generator providing electric power to said register flow control means to thereby maintain said register flow control means electrically self-sufficient,
• said register flow control means responsive to said externally provided control signal to provide a loading of said generator so that said air turbine is braked thereby obstructing airflow past said air turbine and through said register and controlling airflow.

A method

• comprising the step of:
• placing an air driven turbine coupled to drive a generator in an air flow path in an air circulating system, and
• loading the generator to cause the air driven turbine to reduce its rotary speed thereby obstructing air flow in the system and controlling air flow.