Patents by Inventor Lester Dupre

Lester Dupre 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).

  • Infiltration methods for forming drill bits
    Patent number: 8047260
    Abstract: An infiltration method of forming an article including providing a working mold including a solid binder member extending through an interior of the working mold, wherein the solid binder member is made of a binder material, and providing a layer of powder matrix material within a molding void of the working mold. The method further includes heating the working mold to form a molten binder pathway from the solid binder member to infiltrate the layer of powder matrix material.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 1, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Timothy P. Uno, Marc W. Bird, Curtis A. Proske, Lester Dupre
  • INFILTRATION METHODS FOR FORMING DRILL BITS
    Publication number: 20100166592
    Abstract: An infiltration method of forming an article including providing a working mold including a solid binder member extending through an interior of the working mold, wherein the solid binder member is made of a binder material, and providing a layer of powder matrix material within a molding void of the working mold. The method further includes heating the working mold to form a molten binder pathway from the solid binder member to infiltrate the layer of powder matrix material.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Inventors: Timothy P. Uno, Marc W. Bird, Curtis A. Proske, Lester Dupre