Lightweight maneuverable power chair
US6273212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Feb 12, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S180/907
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lightweight, easily maneuverable and transportable power chair, that may be manually propelled, includes a pair of freely rotatable wheels and a corresponding pairs of friction rollers and braking surfaces that are selectively engageable therewith to effect propulsion and steering of the chair. A pair of toggle levers are operated by a corresponding pair of control handles for selectively engaging the friction rollers and brake surfaces with the wheels. A single caster wheel is vertically rotatable at the front of the power chair frame. This forms a tricycle rolling system that always maintains a load on each of the driving wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.