Patents by Inventor Kris V. Kumar

Kris V. Kumar 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).

  • Patent number: 8070556
    Abstract: A method of grinding a ferrous roll may include: rotating a grinding wheel on a machine spindle to form a rotating grinding wheel; rotating a ferrous roll to form a rotating roll surface; bringing the rotating grinding wheel into contact with the rotating roll surface; traversing the rotating grinding wheel across an axial roll length of the rotating roll surface; and grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a said mill roll rotational speed at an amplitude of +/?1 to 40% with a period of 1 to 30 seconds.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: December 6, 2011
    Assignee: Diamond Innovations, Inc.
    Inventors: Kris V. Kumar, Biju Varghese
  • Patent number: 8029338
    Abstract: Iron and steel rolls are ground to production quality requirements with a grinding wheel that requires minimal wheel wear compensation, profile error compensation or taper error compensation during the grinding process. The grinding wheel consists essentially of a superabrasive material selected from the group of natural diamond, synthetic diamond, cubic boron nitride, and mixtures thereof, in a bond system, for a grinding wheel with extended wheel life, and which removes minimum amount of stock off the roll to achieve desired roll geometry.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: October 4, 2011
    Assignee: Diamond Innovations, Inc.
    Inventors: Kris V. Kumar, Biju Varghese
  • Publication number: 20090068928
    Abstract: A method of grinding a ferrous roll may include: rotating a grinding wheel on a machine spindle to form a rotating grinding wheel; rotating a ferrous roll to form a rotating roll surface; bringing the rotating grinding wheel into contact with the rotating roll surface; traversing the rotating grinding wheel across an axial roll length of the rotating roll surface; and grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a said mill roll rotational speed at an amplitude of +/?1 to 40% with a period of 1 to 30 seconds.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 12, 2009
    Applicant: DIAMOND INNOVATIONS, INC.
    Inventors: Kris V. Kumar, Biju Varghese