Wheelchair drive mechanism
US6893035B2 · kind B2 · utility
12Cited by
16References
14Claims
0Family size
Inventors
Key dates
| Filing date | Dec 2, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Dec 2, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D41/088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wheelchair which shifts between forward and reverse by virtue of a roller mechanism which grabs in one direction and slips an opposite direction, thereby preventing binding. The shift mechanism is initiated by rotation of a shift paddle which is located on a extremity of a lever arm remote from the roller mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.