Patents by Inventor Hans-Juergen Schuerhoff

Hans-Juergen Schuerhoff 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).

  • Processes of manufacturing prestressed concrete
    Patent number: 5114653
    Abstract: Methods of forming cast prestressed concrete elements and structures include a non-corrosive reinforcing element being formed of a plurality of substantially parallel continuous filaments embedded in a matrix of thermosetting resin. These reinforcing elements are tensioned, then concrete cast about the elements is permitted to harden and the tension transferred to the now-hardened concrete in order to prestress the same. The resulting concrete elements and structures have high resistance to alkali induced corrosion of the prestressing elements.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: May 19, 1992
    Assignees: Akzo N.V., Hollandsche Beton Groep N.V.
    Inventors: Hans-Juergen Schuerhoff, Arie Gerritse, Lambertus C. Mets