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Solar energy collector and sun tracking concentrator

Image Number 5 for United States Patent #4055161.

Automatic tracking of a source of radiant energy to pivotally displace an energy collector panel assembly for optimum concentration of the radiant energy absorbed. Changes in magnitude and/or location of the source relative to the collector produces a change in differential air pressure in a sensor to displace the center of mass of a gravitational drive device through which tracking movement is imparted to the collector panel assembly.

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