Patents by Inventor Dirk Nemegeer

Dirk Nemegeer 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).

  • Preparation of bituminous concrete comprising wire pieces
    Patent number: 6159278
    Abstract: The invention relates to the manufacturing of a castable hot mixture of bituminous concrete, in which a multiplicity of steel wire pieces are equally distributed in the mixture. According to the invention, an ingredient is used in the form of a multiplicity of bundles in which the wire pieces are held together by a binding substance that is able to disintegrate in cementitious concrete, as already known, but that in addition is disintegrated by melting, in such a way that such bundles are usable for both cementitious and bituminous concretes.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: December 12, 2000
    Assignee: N.V. Bekaert S. A.
    Inventors: Dirk Nemegeer, Yves Vancraeynest
  • Preparation of bituminous concrete comprising wire pieces
    Patent number: 6010566
    Abstract: The invention relates to the manufacturing of a castable hot mixture of bituminous concrete, in which a multiplicity of steel wire pieces are equally distributed in the mixture. According to the invention, an ingredient is used in the form of a multiplicity of bundles in which the wire pieces are held together by a binding substance that is able to disintegrate in cementitious concrete, as already known, but that in addition is disintegrated by melting, in such a way that such bundles are usable for both cementitious and bituminous concretes.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: January 4, 2000
    Inventors: Dirk Nemegeer, Yves Vancraeynest
  • Steel fiber reinforced concrete with high flexural strength
    Patent number: 5865000
    Abstract: Steel fiber reinforced concrete with very high flexural strength. A concrete composition is used with a compressive strength P of at least 80 N/mm.sup.2. Mixed in the concrete are fibers made by a cold work hardening cross-section reduction operation, having a length-to-thickness ratio ranging from 60 to 120, and with a grappling form. The tensile strength T of the steel is in a proportion with respect to the compressive strength P according to the formula T/P>17.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: February 2, 1999
    Assignee: N.V. Bekaert S.A.
    Inventors: Dirk Nemegeer, Yves Vancraeynest