Exercise arm apparatus with pivotal linkage system
US6491609B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Jan 30, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2225/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An exercise arm apparatus has a stationary frame member, a first pivoting arm pivoted to the frame member at a location intermediate its ends for rotation about a first pivot axis, a second pivoting arm pivotally connected to the frame member for rotation about a second pivot axis spaced from the first pivot axis, and a connecting link pivotally connected to the first arm and second arm to form a four-bar linkage. The first arm is an exercise arm with handles at one end for gripping by a user, and the connecting link is of sufficient weight to form a counter-weight to counter-balance the first exercise arm into a rest position corresponding to a start position for an exercise movement. In one example the connecting link is a solid, elongate bar of heavy metal or equivalent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.