Multi-function yo-yo

Details Multi-function yo-yo Multi-function yo-yo

2008-04-10

2010-06-22

Nguyen, Kien T (Department: 3711)

Amusement devices: toys

Rotating or having visible rotating portion

Having attached cord for imparting rotation

Reexamination Certificate

active

07740517

ABSTRACT:
A multi-function yo-yo switchable between operation as a traditional yo-yo, a free-spin yo-yo, and a centrifugal-clutch yo-yo. Within one or both of the fly disks is one or more rotational-speed governors, and about the axle is a cylindrical axle sleeve which is rotatable about the axle. Each governor is spring-biased to an inwards position the governor contacts the axle sleeve, forcing the axle sleeve to rotate with the fly disks and axle. However, when the yo-yo spins sufficiently rapidly, the governors are thrown by centrifugal force to a radially-outwards position so as not to be in contact with the axle sleeve so that the axle sleeve may rotate independently of the fly disks. A function control switch locks the governors in the inwards position or the outwards position or allows the position to be controlled by centrifugal force.

REFERENCES:
patent: 4332102 (1982-06-01), Caffrey
patent: 6053796 (2000-04-01), Tung
patent: 6354905 (2002-03-01), Haines et al.
patent: 6626932 (2003-09-01), Whitehurst
patent: 7059932 (2006-06-01), Tobias et al.

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