Quadrilateral exercise apparatus
US5368533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1993 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | May 13, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2220/805
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A quadrilateral exercise and training device includes a plurality of longitudinally extending channel members mounted on cross frame members so as to define elongated slots in which foot-supporting members and hand-engaging members can reciprocate. A control system interconnecting the foot-supporting members and hand-engaging members includes a main flat synchronizing belt interconnecting the foot-supporting members and hand-engaging members to establish desired coordination between the respective members, a safety belt interconnecting the foot-supporting members and a drive belt associated with each foot-supporting member which operatively engage a pair of drive shafts having a braking system and an optical transducer for converting rotation of one of the drive shafts to a digitized informational readout for use by an operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.