Patents by Inventor Joël Demarest

Joël Demarest 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).

  • CENTRIFUGALLY-CAST TUBE AND RELATED METHOD AND APPARATUS FOR MAKING SAME
    Publication number: 20100275753
    Abstract: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 4, 2010
    Applicant: MANOIR INDUSTRIES, INC.
    Inventors: Joël Demarest, Gilles Verdier
  • CENTRIFUGALLY-CAST TUBE AND RELATED METHOD AND APPARATUS FOR MAKING SAME
    Publication number: 20100215454
    Abstract: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface.
    Type: Application
    Filed: May 7, 2010
    Publication date: August 26, 2010
    Applicant: MANOIR INDUSTRIES, INC.
    Inventors: Joël Demarest, Gilles Verdier
  • Centrifugally-cast tube and related method and apparatus for making same
    Patent number: 6644358
    Abstract: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: November 11, 2003
    Assignee: Manoir Industries, Inc.
    Inventors: Joël Demarest, Gilles Verdier