Patents by Inventor Dwight FRY

Dwight FRY 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).

  • Apparatus for ascending and descending stairs with a wheelchair
    Patent number: 9708162
    Abstract: An apparatus that permits a wheelchair to traverse stairs. A carriage platform supporting the wheelchair is housed in an inclined ways assembly and moves by means of a rotated threaded rod supported in the ways and traveling nuts fixed to the carriage; a debarkation ramp hinged to the carriage, spans the distance and elevation difference between the carriage and the desired landing point.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: July 18, 2017
    Inventor: Dwight Fry
  • Apparatus For Ascending And Descending Stairs With A Wheelchair
    Publication number: 20140251733
    Abstract: An apparatus that permits a wheelchair to traverse stairs. A carriage platform supporting the wheelchair is housed in an inclined ways assembly and moves by means of a rotated threaded rod supported in the ways and traveling nuts fixed to the carriage; a debarkation ramp hinged to the carriage, spans the distance and elevation difference between the carriage and the desired landing point.
    Type: Application
    Filed: November 7, 2012
    Publication date: September 11, 2014
    Inventor: Dwight FRY