Power wheelchair
US6938923B2 · kind B2 · utility
131Cited by
29References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2002 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Apr 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S180/907
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A curb-climbing rear wheel drive power wheelchair is disclosed having a pair of drive wheels, at least one ground-engaging idler wheel connected to the frame forward of the drive wheels and at least one anti-tip wheel mounted above ground aft of the drive wheels. The drive wheels and anti-tip wheels are mounted on common suspension arms, pivoted to the frame of the wheelchair behind the drive wheels and resiliently suspended, so that the anti-tip wheels move up and down in response to movements of the drive wheel suspension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.