Patents by Inventor Virendra S. Warke

Virendra S. Warke 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).

  • Methods for Manufacture and Use of Composite Preform Having a Controlled Fraction of Porosity in at Least One Layer
    Publication number: 20120085811
    Abstract: The invention provides clad billet for hot working plastic deformation processes for the production of clad products, including, but not limited to, clad pipe and tubing by extrusion of a hollow, bicomponent composite billet having a fully dense structural component and a partially dense component of a specialty alloy at a fraction of porosity predetermined to provide a flow stress compatible with that of the structural component. The components are diffusion bonded to the predetermined fraction of porosity in the specialty component by application of heat and pressure over time, including by hot isostatically pressing the billet components. Computer modeling techniques can be used to determine processing conditions for obtaining flow stress compatibility.
    Type: Application
    Filed: November 9, 2011
    Publication date: April 12, 2012
    Applicant: BODYCOTE IMT, INC.
    Inventors: Virendra S. Warke, Stephen J. Mashl
  • Composite Preform Having a Controlled Fraction of Porosity in at Least One Layer and Methods for Manufacture and Use
    Publication number: 20090269605
    Abstract: The invention provides clad billet for hot working plastic deformation processes for the production of clad products, including, but not limited to, clad pipe and tubing by extrusion of a hollow, bicomponent composite billet having a fully dense structural component and a partially dense component of a specialty alloy at a fraction of porosity predetermined to provide a flow stress compatible with that of the structural component. The components are diffusion bonded to the predetermined fraction of porosity in the specialty component by application of heat and pressure over time, including by hot isostatically pressing the billet components. Computer modeling techniques can be used to determine processing conditions for obtaining flow stress compatibility.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 29, 2009
    Inventors: Virendra S. Warke, Stephen J. Mashl