Wrist exercise device
US4838542A · kind A · utility
32Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | May 20, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B21/015
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A wrist exercise device includes a hollow shaft having a turning disk rotatably mounted at one end thereof. Resistance is provided to oppose the rotation of the turning disk. A turning knob is secured at the opposite end of the shaft for setting the amount of the resistance. Detachable weights are mounted on the device so that the device also functions as a dumbbell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.