Patents by Inventor Krishna Pappu

Krishna Pappu 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).

  • Machine tool adapter to reduce vibrations and noise
    Patent number: 9073159
    Abstract: A tool adapter includes a holder structured to be attached to a machine tool and a tool receiver structured to receive a portion of a rotary cutting tool therein. The tool receiver being mounted in the holder so as to be rotatable to a limited extent. The tool receiver being mounted in the holder so as to be elastically resilient in the axial direction.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: July 7, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Horst Manfred Jäger, Krishna Pappu
  • Tool adaptor having an integrated damping device
    Patent number: 9061355
    Abstract: A tool adapter includes an adaptor body having a connection portion structured to be attached to a machine tool and a holder portion disposed opposite the connection portion and a tool receiver structured to receive and couple a portion of a rotary cutting tool therein. The tool receiver is mounted in the holder portion so as to be rotatable to a limited extent. The tool receiver is mounted in the holder so as to be elastically resilient in both the axial and circumferential directions.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: June 23, 2015
    Assignee: KENNAMETAL INC.
    Inventors: Krishna Pappu, Ruy Frota De Souza, Horst Manfred Jaeger
  • TOOL ADAPTOR HAVING AN INTEGRATED DAMPING DEVICE
    Publication number: 20140001715
    Abstract: A tool adapter includes an adaptor body having a connection portion structured to be attached to a machine tool and a holder portion disposed opposite the connection portion and a tool receiver structured to receive and couple a portion of a rotary cutting tool therein. The tool receiver is mounted in the holder portion so as to be rotatable to a limited extent. The tool receiver is mounted in the holder so as to be elastically resilient in both the axial and circumferential directions.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: Kennametal Inc.
    Inventors: Krishna Pappu, Ruy Frota De Souza, Horst Manfred Jaeger
  • MACHINE TOOL ADAPTER TO REDUCE VIBRATIONS AND NOISE
    Publication number: 20120301240
    Abstract: A tool adapter includes a holder structured to be attached to a machine tool and a tool receiver structured to receive a portion of a rotary cutting tool therein. The tool receiver being mounted in the holder so as to be rotatable to a limited extent. The tool receiver being mounted in the holder so as to be elastically resilient in the axial direction.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 29, 2012
    Inventors: Horst Manfred Jäger, Krishna Pappu
  • Method of grouping scan flops based on clock domains for scan testing
    Publication number: 20050091622
    Abstract: A method of grouping cells in an integrated circuit design includes steps of: (a) receiving as input a representation of an integrated circuit design; (b) initializing a corresponding list of cells for a common signal domain in the integrated circuit design; (c) selecting a cell belonging to a common signal domain that is not included in a corresponding list of cells for a common signal domain; (d) tracing a net from an input port of the selected cell to a signal driver and inserting the selected cell in the corresponding list of cells for the common signal domain associated with the signal driver; and (e) tracing the net to an input port of each cell connected to the signal driver and inserting each cell traced from the net in the corresponding list of cells for the common signal domain associated with the signal driver.
    Type: Application
    Filed: October 28, 2003
    Publication date: April 28, 2005
    Inventors: Krishna Pappu, Hunaid Hussain, Arun Gunda