Patents by Inventor Michiel Leendert Ridder

Michiel Leendert Ridder 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).

  • Thermal barrier coating ceramic structure
    Patent number: 6455173
    Abstract: A multilayered ceramic topcoat of a thermal barrier coating system is useful for high temperature corrosive applications such as hot section components in gas turbine engines. The ceramic topcoat includes at least two layers, each having generally columnar grain microstructures with different grain orientation directions. A preferred method of producing the multilayered ceramic topcoat includes positioning a superalloy substrate at a first angled orientation relative to a ceramic vapor cloud in an electron beam physical vapor deposition apparatus for a time sufficient to grow a first ceramic layer. The substrate is then reoriented to a second, different angled orientation for a time sufficient to grow a second ceramic layer. The ceramic layers exhibit columnar microstructures having respective grain orientation directions which are related to the first and second substrate orientations.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: September 24, 2002
    Inventors: Gillion Herman Marijnissen, Astrid Helennia Francoise van Lieshout, Gerardus Johannes Ticheler, Hendrikus Jacobus Maria Bons, Michiel Leendert Ridder
  • Thermal barrier coating ceramic structure
    Patent number: 5876860
    Abstract: A multilayered ceramic topcoat of a thermal barrier coating system is useful for high temperature corrosive applications such as hot section components in gas turbine engines. The ceramic topcoat includes at least two layers, each having generally columnar grain microstructures with different grain orientation directions. A preferred method of producing the multilayered ceramic topcoat includes positioning a superalloy substrate at a first angled orientation relative to a ceramic vapor cloud in an electron beam physical vapor deposition apparatus for a time sufficient to grow a first ceramic layer. The substrate is then reoriented to a second, different angled orientation for a time sufficient to grow a second ceramic layer. The ceramic layers exhibit columnar microstructures having respective grain orientation directions which are related to the first and second substrate orientations.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: March 2, 1999
    Assignee: N.V. Interturbine
    Inventors: Gillion Herman Marijnissen, Astrid Helennia Francoise van Lieshout, Gerardus Johannes Ticheler, Hendrikus Jacobus Maria Bons, Michiel Leendert Ridder