Patent ID: 8187052
Filing Date: 2012-05-29
Classification: A63H

Abstract:
1. A yo-yo comprising: first and second body members; first and second board assemblies, wherein said first board assembly has mass and wherein said second board assembly has mass; wherein a first side portion of said yo-yo comprises said first body member, said first board assembly and a plurality of permanent magnets fixedly secured to said first body member in a manner wherein said permanent magnets are spaced apart from each other; wherein a second side portion of said yo-yo comprises said second body member and said second board assembly; wherein said first and second side portions are secured together in a spaced-apart relation by an axle structure; a tether operatively connected to said axle structure; wherein said first board assembly is rotatably secured to said yo-yo in a manner whereby said first board assembly is freely rotatable relative to said first body member, wherein a sensor, an electromagnet, a controller and an electrical power source are secured to said first board assembly and are operatively connected to each other; wherein said sensor is capable of detecting a magnetic field and wherein said permanent magnets and said sensor are located in a manner whereby when said first body member is rotating relative to said first board assembly, said permanent magnets are capable of passing said sensor in a manner that causes a change in said sensor; wherein said electromagnet is located in a manner whereby when said first body member is rotating relative to said first board assembly and said electromagnet receives power, said electromagnet can apply a force to one of said permanent magnets located proximate said electromagnet; wherein when power is being supplied to said sensor and said permanent magnets are passing by said sensor and causing a change in said sensor that is transmitted to said controller, said controller can cause said electromagnet to become temporarily energized at an appropriate time to cause said electromagnet to apply a force to one of said permanent magnets in a manner whereby said force acts to at least maintain a rotational momentum of said body member; wherein said second board assembly is rotatably secured to said yo-yo in a manner whereby said second board assembly is freely rotatable relative to said second body member; and wherein a rod connects together said first and second board assemblies, wherein said rod and said axle structure are relatively rotatable, and wherein said rod also functions to cause said board assemblies to become positionally fixed relative to each other and wherein when the first board assembly's electromagnet applies a force to one of said permanent magnets, an equal and opposite force will be created and will try to cause a movement of said first board assembly that may be mitigated by the rod enabling the mass associated with said second board assembly to be added to the mass associated with the first board assembly.