Adjustable speed ball bearing jump rope
US6551222B1 · kind B1 · utility
36Cited by
8References
2Claims
0Family size
Inventor
Key dates
| Filing date | Jun 11, 2002 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Jun 11, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/09
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A speed ball bearing jump rope construction with an adjustable rope length, the invention consisting of a pair of hollow handles having external grip surfaces, vent holes and a bearing assembly at one end of each handle fastened with a screw threaded into the handles. Screws mounted within each of the tops of the bearing assemblies permit the rope to slide to shorten the length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.