Patents by Inventor Russell Marvin Baker

Russell Marvin Baker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7708093
    Abstract: A motorized wheelchair machine with stand-up support capability having independent front drive motors and wheels, drive wheels with axle centerline in vicinity of arches of user's feet, allowing more instinctive and natural maneuvering, simplified lift system using a linear actuator and collapsing parallelogram lifting frame design, for reduced cost and greater comfort. A preferred embodiment includes an onboard electrical cell charger, extendable and retractable charger cord compatible with standard household electrical outlets and an interlock switch that prevents use of the drive motors while charger is plugged into an electrical power receptacle and a novel leg-brace device.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 4, 2010
    Inventor: Russell Marvin Baker