Wheelchair
US4735431A · kind A · utility
22Cited by
5References
8Claims
0Family size
Inventor
Key dates
| Filing date | Sep 20, 1985 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Sep 20, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B5/048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wheelchair is propelled by movement of a pair of normally horizontal handles which are pivotally mounted on either side of the chair. Up and down movement of the levers drives a clutch which in turn is connected to the driven wheels for propulsion. The up and down motion of the levers allows the occupant to use their weight to assist propulsion as well as partially and intermittently relieving the ischial tuberosities of weight bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.