Knee exerciser
US4384715A · kind A · utility
26Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1980 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | Dec 17, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B21/1654
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vertically elongated tube houses a compression coil spring reacting between one end of a cable within an upper end portion of the tube and a tube anchoring frame to develop an exercising force transmitted by the cable. A pulley from which the cable extends externally from a lower end portion of the tube to a body harness, guides cable movement under forces applied through the cable at an angle to the tube within a wide range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.