Weight ring exercise system
US5607379A · kind A · utility
21Cited by
1References
14Claims
0Family size
Inventor
Key dates
| Filing date | Jul 24, 1995 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jul 24, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B21/075
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The weight ring exercise system includes a weight collar rotatably attached to a weightlifting bar. A plurality of progressively larger weight rings are provided. The smaller weight rings are circumscribed in turn by the larger. The smallest weight ring circumscribes the collar. The weight rings are secured to each other and the collar in turn by a bearing seated in a groove on the smaller weight rings and the collar. A plunger is provided to seat and unseat the bearing in the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.