In-line skate wheel
US6050648A · kind A · utility
51Cited by
50References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Mar 13, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C17/223
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An in-line skate wheel includes an polyethylene closed cell foam ring surrounding the outer cylindrical surface of a hard plastic hub. Polyurethane is molded onto the outer cylindrical surface of the hub and surrounding the polyethylene ring. The polyethylene ring is provided with a substantially lower density than the density of the polyurethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.