Apparatus for continuously varying the resistance force of a weight training device
US5891004A · kind A · utility
Inventor
Key dates
| Filing date | Dec 24, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Dec 24, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/0247
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for weight training is attached to a weight lifting apparatus, such as a barbell or a selectorized weight machine, to provide a continuously variable resistance force to the lifting bar of the apparatus. As the power demands of the particular exercise decrease and then increase over an exercise cycle due to the musculoskeletal characteristics of the body, this device provides increasing and then decreasing resistance force to dampen out the variations in the power demands over the exercise cycle. A length of latex tubing intended for a specific exercise can be used to provide the variable resistance force. The latex tubing is connected at one end to the weight lifting apparatus and at the other end to an anchor, such as a platform loaded with weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.