Patents by Inventor Fran.cedilla.oise Dauron

Fran.cedilla.oise Dauron 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).

  • Formwork for building a concrete wall
    Patent number: 5687522
    Abstract: A formwork constructed of prefabricated elements, preferably for building a concrete wall. The formwork has two parallel walls that define a space that is filled with concrete laden with water, sand and large aggregates. An inner wall of the formwork has a lattice or perforated structure to filter and pass water and small aggregates from the space that is filled with concrete. An outer wall also has a lattice or perforated structure to filter additional water and smaller aggregates from the space that is filled with concrete. This invention also includes a concrete heating wall that may be constructed from formwork.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: November 18, 1997
    Inventors: Philippe Durand, Fran.cedilla.oise Dauron