Toy top
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United States of America Patent
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Dec 8, 2020
Grant Date -
N/A
app pub date -
Jan 1, 2020
filing date -
Jan 1, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The invention is a novel toy top which appears to defy ordinary performance. The toy top has a top portion, and a bottom portion, and is operable for being spun around with the bottom portion below the upper portion. The top portion is adapted to be rotated by an external rotational force to spin the toy top. The toy top includes means operable for enabling a change in the rotational inertia at a predetermined rate from first value to a second value lower than the first value after the toy top has started to spin, whereby the rotational spinning rate of the toy top initially reduces, and then increases due to the decrease in the rotational inertia of the toy top. Eventually, the toy top monotonically decreases its rotational spin and stops.
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