Magnetic top toy
US7275974B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Nov 26, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H1/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A wheel-shaped top with magnetic spindles projecting from the body. A circular disc with a beaded rim is mounted on each end of a shaft; the rims of the discs forming a two-rail track encircling the shaft. A handle has two legs attached to opposite ends of the shaft. The spindles are magnetically attached to the two-rail track. The top orbits around the track in response to hand-manipulation of the handle; it is launched from the track when the orbital speed is sufficient to centrifugally separate the spindles from the track to spin on a surface, and can be magnetically retrieved, while spinning, by engagement of the spindles with the shaft, or with one or both of the discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.