Patents by Inventor Willie Urena

Willie Urena 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).

  • Manual-electric wheelchair drive device
    Patent number: 6883632
    Abstract: An input device (such as a rotational hand crank) receives a constantly-applied motion, and outputs a signal to a controller which, in turn, sends an appropriate signal to an electric motor, which is connected to the chair via a mechanical transmission. The wheel is removably mounted in front of a wheelchair such that the front wheels of the chair are lifted above the ground. The device is generally steered manually, such as by pivoting an input device to one side.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 26, 2005
    Inventors: Lang J. McHardy, Willie Urena
  • Manual-electric wheelchair drive device
    Publication number: 20030000748
    Abstract: An input device (such as a rotational hand crank) receives a constantly-applied motion, and outputs a signal to a controller which, in turn, sends an appropriate signal to an electric motor, which is connected to the chair via a mechanical transmission. The wheel is removably mounted in front of a wheelchair such that the front wheels of the chair are lifted above the ground. The device is generally steered manually, such as by pivoting an input device to one side.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 2, 2003
    Inventors: Lang J. McHardy, Willie Urena