Music crystal ball structure capable of rotating in alternating directions
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United States of America Patent
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Aug 31, 1999
Grant Date -
N/A
app pub date -
Jun 17, 1998
filing date -
Jun 17, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A music crystal ball structure capable of rotating in alternating directions. A music bell serves as a power source for transmitting power to a mutilated gear which further transmitting the power to a gear member having inner circumferential teeth and outer circumferential teeth. The gear member is driven to rotate in alternating directions. For example, the gear member is counterclockwise rotated through an angle and then clockwise rotated through another angle. Such movement is circularly repeated to form a 'forward 3, backward 1' state. By means of more than one set of gears, the decorative articles installed in the crystal ball and driven by the gear member can act like dancing opposite to each other and create a dynamic live view.
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Family
International Classification(s)
Cited Art Landscape
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