Collapsible wheelchair
US5244222A · kind A · utility
Inventor
Key dates
| Filing date | May 2, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | May 2, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/0891
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention relates to a collapsible wheelchair (1) having a chassis (2) composed of two separate, lateral symmetrical sides (6) each including at least one virtually vertical upright bar (7), an upper arm (12), a lower arm (15) a carrying wheel (10) at the rear of the chassis and a guiding wheel (17) at the front of the chassis. The upper and lower arms (12, 15) are solid with the upright bar (7) and the lateral sides are only connected by the joint action of a seat (3) and a back (4), each including two rigid and symmetrical half-pieces (18, 28), articulated between each other following a median axis respectively of seat (3) and back (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.