Buoyant water heating device
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United States of America Patent
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Jul 9, 2013
Grant Date -
Oct 28, 2010
app pub date -
Apr 26, 2010
filing date -
Apr 27, 2009
priority date (Note) -
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Abstract
A buoyant water heating device that may be used in a natural setting, such as a pond or lake, or in a man-made water-containing apparatus, such as a pool or water-treatment lagoon. The device comprises a water-filled, generally cylindrical anchor member coupled to a hollow, generally annular base member, and may he used alone or in combination with multiple other devices to create a free-floating blanket on the surface of the water. The device absorbs solar energy to heat water external to the device, and also provides a layer of thermal insulation between the water and the air above the device.
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