Patent ID: 6071165
Filing Date: 2000-06-06
Classification: A63H,G09B

Abstract:
A thermally-powered diving device for diving up and down in response to thermal radiation comprising:a transparent tube adapted for retaining liquid and gas above said liquid, said tube disposed in a vertical position in operation, thereby defining a lower portion and an upper portion,a transparent liquid partially filling said tube; anda diver comprising a hollow body of solid material at least partially filled with gas and including a heat absorbing material, said diver disposed in said liquid, whereby when said diver is in the lower portion of said tube exposed to thermal radiation, heating the gas within said diver will cause said diver to rise toward the upper portion; anda shield shading the upper portion of said tube from thermal radiation, whereby when said diver is in the upper part of said tube, cooling the gas within said diver will cause said diver to drop toward the lower portion.