Flexible wall booster wheel for toy vehicle trackset
US6793554B1 · kind B1 · utility
14Cited by
15References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Jun 30, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H18/16
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A toy vehicle booster for accelerating a toy vehicle upon a trackway includes a pair of rotating flexible resilient booster wheels positioned on each side of the trackway. In an alternative embodiment, a booster wheel is positioned above the trackway so as to engage the horizontal surfaces such as the roof of the toy vehicles. The booster wheels are formed of a concave resilient structure having a plurality of apertures positioned within the booster wheel to provide a desired flexibility in certain portions of the booster wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.