Power wheelchair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 22, 2008
Grant Date -
Apr 20, 2006
app pub date -
Oct 18, 2005
filing date -
Oct 20, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power wheelchair is capable of operating in either a two-wheel or a four-wheel drive configuration. The wheelchair includes first and second forward drive wheels in contact a supporting surface. First and second wheel support assemblies each include a support member pivotally connected to the wheelchair frame. Each wheel support assembly further includes a rear drive wheel and a rear non-driven wheel connected to the support member. At least one actuator is provided to control movement of the support members to pivot between a first position and a second position. In the first position, the rear non-driven wheel is moved into contact with the supporting surface and the rear drive wheel is moved out of contact with the supporting surface. In the second position the rear drive wheel is moved into contact with the supporting surface.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- B60R Class
- 1.75 % this patent is cited more than
- 17 Age
