Selective free rotation yo-yo

Details Selective free rotation yo-yo Selective free rotation yo-yo

1991-09-19

1993-02-09

Yu, Mickey

Amusement devices: toys

Rotating or having visible rotating portion

Having attached cord for imparting rotation

446249, A63H 130

Patent

active

051849720

ABSTRACT:
A yo-yo having a pair of rotation bodies spaced from each other by a shaft, with the shaft means having a string connected thereto. Mechanisms are provided between the shaft and the rotation bodies such that: the shaft is fixed with respect to the rotation bodies as the string is unwound and the yo-yo travels downward; the shaft my rotate with respect to the rotation bodies for a selected number of rotations when the string has been completely unwound; and the shaft is fixed with respect to the rotation bodies after completion of the selected number of rotations and may therefore rewind the string to return the yo-yo to the user's hand. This mechanism may take various forms, including gears, locking tines, and tape reels.

REFERENCES:
patent: 3139699 (1964-07-01), Chuy
patent: 3362101 (1968-01-01), Grow

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