Spinning top
US6666743B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2001 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Dec 26, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H1/24
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A hollow rotatable member preferably made from a clear plastic material and a hollow cover are attached to each other in a spinning top. A ring is disposed within the top on the cover at a position of the top's substantially maximum diameter to provide stability and inertia to the top during the top's rotation, thereby significantly increasing the top's spinning time. A cap fits tightly on the upper portion of the rotatable member. A strap having teeth defining a rack gear extends through an aperture in the cap and engages a pinion gear in the aperture. When the strap is pulled from the aperture, the pinion gear rotates and causes the top to spin. Because of the tight fit between the top and the cap, the top can be thrown outwardly and downwardly toward a support surface and can be spinning as it reaches the support surface. The cap may have an increased vertical dimension to facilitate the manual holding of the top in a vertical direction when the strap is pulled from the cap aperture to initiate the top's spinning. Lights may be disposed within the rotatable member to provide illuminations while the top is spinning. A belt is disposed on the cover at substantially the position of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.