Patents by Inventor Dennis Martell-Solares

Dennis Martell-Solares 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).

  • Mechanically assisted standing wheelchair
    Patent number: 6533304
    Abstract: The present invention provides a hydraulic powered wheelchair pivotable from a sitting position to a standing position with minimal user effort. The pivoting frame assembly includes a rigid horizontally arranged wheel support structure, a single vertical extending member secured to the wheel support structure and centered between the wheels, and a pivoting frame linkage assembly pivotably connected at the upper end of the vertically extending member. A hydraulic jack rests on the wheel support structurs, and is connected at the other end to the seat support members of the pivoting assembly. A user of the wheelchair pivots a lever assembly to raise the jack, and thus raise the chair to the standing position. An electric buzzer system is integrated with the wheelchair, and an alarm informs the operator when the chair has reached the standing position.
    Type: Grant
    Filed: December 2, 2000
    Date of Patent: March 18, 2003
    Assignee: University of Puerto Rico
    Inventors: Mauricio Anibal Lizama-Troncoso, David Serrano-Acevedo, Dennis Martell-Solares, Eduardo F. Carlo-López, Eduardo Bravo-Rios
  • Mechanically assisted standing wheelchair
    Publication number: 20010024025
    Abstract: The present invention provides a hydraulic powered wheelchair pivotable from a sitting position to a standing position with minimal user effort. The pivoting frame assembly includes a rigid horizontally arranged wheel support structure, a single vertical extending member secured to the wheel support structure and centered between the wheels, and a pivoting frame linkage assembly pivotably connected at the upper end of the vertically extending member. A hydraulic jack rests on the wheel support structurs, and is connected at the other end to the seat support members of the pivoting assembly. A user of the wheelchair pivots a lever assembly to raise the jack, and thus raise the chair to the standing position. An electric buzzer system is integrated with the wheelchair, and an alarm informs the operator when the chair has reached the standing position.
    Type: Application
    Filed: December 2, 2000
    Publication date: September 27, 2001
    Inventors: Mauricio Anibal Lizama-Troncoso, David Serrano-Acevedo, Dennis Martell-Solares, Eduardo F. Carlo-Lopez, Eduardo Bravo-Rios