Wheelchair suspension
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 21, 2015
Issued Date -
N/A
app pub date -
Oct 8, 2010
filing date -
Oct 9, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Wheeled vehicles, such as wheelchairs, that are adapted to traverse obstacles are provided. The wheeled vehicles include a frame, drive wheels, front anti-tip wheels positioned in front of the drive wheels and rear anti-tip wheels positioned behind the drive wheels. One exemplary vehicle includes front anti-tip wheels supported by rigid arms that are fixed to the frame and drive assemblies that are independently suspended from the frame. Another exemplary vehicle includes a linkage that links the front and rear anti-tip wheels, such that movement of one of the front or rear anti-tip wheel relative to the frame causes movement of the other wheel relative to the frame.
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Family
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