Yo-yo having a centered disc supported by an arm
US6561867B1 · kind B1 · utility
2Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2002 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Sep 3, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H1/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A yo-yo includes an outer ring, a support arm extending inwardly from the outer ring and a disc supported within the outer ring by the support arm. In addition, a region on the outer ring adjacent the support arm is thinner then another region on the outer ring opposite the support arm to compensate for any additional weight defined by the support arm. Furthermore, the outer ring is defined as having a cavity and the disc has an overall shape smaller then the cavity such that the disc appears to be suspended within the outer ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.