High performance roller bearing yo-yo
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 20, 2003
Grant Date -
N/A
app pub date -
Sep 1, 2000
filing date -
Sep 8, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A yo-yo includes a first yo-yo half defining a first starburst, a second yo-yo half defining a second starburst, and an axle fixedly mounted between said yo-yo halves. The yo-yo also includes a roller bearing fixedly attached to the axle, and a spool fixedly attached to the roller bearing, the spool having a circumferential outer rim with a groove therein. A bearing pocket defines an annular radial gap between each yo-yo half and the outer rim, the gap sufficiently small that a string cannot wedge in the gap.
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