Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robert John Ein0
Date of Patent
June 2, 2009
Patent Application Number
10390309
Date Filed
March 17, 2003
Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention uses specialized wheel sets to navigate over various surfaces. The invention has a primary drive wheel with two outrigger wheels to provide stability. In the basic motorized configuration of the apparatus, the user provides certain hand movements of the control mechanism, which in turn produces control signal(s). Incorporated into the invention is a power lifting mechanism, which aids the user to be elevated from a seated position to a standing position without any assistance. A built-in seat is incorporated within the invention. The built-in seat is a fold down type that is adjustable in height.
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