Anti-tip wheelchair
US7694990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Nov 28, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/1075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A manually-powered wheelchair that includes one or more features that enhance the overall maneuverability and stability of the wheelchair, such as centrally mounted drive-wheels and an anti-tip system. Other embodiments may include at least one of an adjustable anti-tip system that may be selectively located to several locations on the frame; a positive stop device attached to either the mounting bracket, frame, or the anti-tip system for limiting movement of the anti-tip system and the frame relative to each other; a resistance device attached to the frame and the anti-tip system for increasing resistance between the frame and the anti-tip system when the user leans backwards in the wheelchair; a wheel lock system engaging at least one of the drive wheels below the wheel's axis of rotation; and a tilt prevention device for selectively preventing any rotation of the wheelchair frame and anti-tip system relative to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.