Patents by Inventor Steven A. Schuman

Steven A. Schuman 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: 4360213
    Abstract: A sports wheel chair has elongated side frame members of hollow high strength tubing extending along the two sides of the chair to provide rear wheel and seat support and extending accurately downwardly to provide front wheel supports. The elongation provides a degree of flexibility that permits front end collisions without damage and permits flexure to maintain contact of all four wheels with uneven terrain. Elongation of the frame increases stability and concentrates weight on the rear wheels for greater maneuverability. The main wheels are cambered out from top to bottom to protect the hands and provide a wider wheel base. All of the frame members are hollow tubes to impart light weight to the chair along with great strength. The two elongated side frame members are joined by novel strong quick connecting and disconnecting parts at the front and back to permit rapid disassembly without sacrificing strength. The front connecting part also provides a foot rest.
    Type: Grant
    Filed: April 1, 1980
    Date of Patent: November 23, 1982
    Inventors: Lawrence A. Rudwick, Steven A. Schuman