Importance

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Abstract

The present invention provides apparatus for tracking the sun which reorients itself immediately in the absence of sunlight. Large and small cannisters are provided at the respective ends of a pivotable frame. When the sun is not normal to the plane containing the cannister, the near cannister is shaded from direct sunlight and the far cannister is exposed. A conduit is provided between the cannisters, and a quantity of volatile fluid is located in the cannisters and conduit. The liquid volume of the volatile fluid is greater than that of the small cannister plus the conduit, but less than the volume of the large cannister. A gas spring fluid is located in the large cannister, which has a vapor pressure sufficient to force the volatile fluid into the small cannister in the absence of sunlight on the east cannister.

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First Claim