Unassisted lower torso strengthening and stretching device
US5067709A · kind A · utility
39Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Nov 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S482/907
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for stretching and strengthening the muscles of the lower back and legs of a person in a supine position. The device includes a board with straps to restrain the pelvis of the person. A rope and pulley system, operated by the person by pulling and releasing extends between the feet and to a support above the head. The rope is pulled by the user to raise the legs, and additional mechanical advantage is employed as the rope is gradually released to lower the legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.