Patents by Inventor Hemant P. Mallampalli

Hemant P. Mallampalli 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).

  • Cooling device
    Patent number: 7669411
    Abstract: A device for cooling a gas is provided. The device comprises an inlet having a first diameter, a mixing section downstream of the inlet and having a second diameter, and an opening in fluid communication with the mixing section and a source of air. The device is such that the second diameter is smaller than the first diameter and a vacuum is created for drawing in the air from the opening as gas passes from the inlet to the mixing section so that the air drawn into the mixing section mixes with the gas. A method for mixing two gases and an exhaust system are also provided.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: March 2, 2010
    Assignee: Caterpillar Inc.
    Inventors: Hemant P. Mallampalli, Fayz Khan, Jason D. Schuster, Brandon J. Stephens
  • Method and apparatus for mixing gases
    Patent number: 6928890
    Abstract: A method and apparatus for mixing a first stream of gas with a second stream of gas is provided. The method includes introducing a first stream of gas into a first stream manifold and directing the first stream from the first stream manifold into a mixing chamber via a plurality of first stream passages flow coupled to the mixing chamber. A second stream of gas is directed into the mixing chamber via at least one second stream passage flow coupled to a first end of the mixing chamber. A combined stream is formed from the first and second streams, gradually converged, and discharged from the mixing chamber through a mixing chamber exit port.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: August 16, 2005
    Assignee: Caterpillar Inc
    Inventors: Gerrick S. Gehner, Russel R. Graze, Jr., Kartik G. Iyer, Korby A. Koch, Hemant P. Mallampalli, John E. Wagner
  • Method and apparatus for mixing gases
    Publication number: 20040093963
    Abstract: A method and apparatus for mixing a first stream of gas with a second stream of gas is provided. The method includes introducing a first stream of gas into a first stream manifold and directing the first stream from the first stream manifold into a mixing chamber via a plurality of first stream passages flow coupled to the mixing chamber. A second stream of gas is directed into the mixing chamber via at least one second stream passage flow coupled to a first end of the mixing chamber. A combined stream is formed from the first and second streams, gradually converged, and discharged from the mixing chamber through a mixing chamber exit port.
    Type: Application
    Filed: November 7, 2003
    Publication date: May 20, 2004
    Applicant: Caterpillar, Inc.
    Inventors: Gerrick S. Gehner, Russel R. Graze, Kartik G. Iyer, Korby A. Koch, Hemant P. Mallampalli, John E. Wagner
  • Method and apparatus for mixing gases
    Publication number: 20040089078
    Abstract: A method and apparatus for mixing a first stream of gas with a second stream of gas is provided. The method includes introducing a first stream of gas into a first stream manifold and directing the first stream from the first stream manifold into a mixing chamber via a plurality of first stream passages flow coupled to the mixing chamber. A second stream of gas is directed into the mixing chamber via at least one second stream passage flow coupled to a first end of the mixing chamber. A combined stream is formed from the first and second streams, gradually converged, and discharged from the mixing chamber through a mixing chamber exit port.
    Type: Application
    Filed: November 7, 2003
    Publication date: May 13, 2004
    Applicant: Caterpillar, Inc.
    Inventors: Gerrick S. Gehner, Russel R. Graze, Kartik G. Iyer, Korby A. Koch, Hemant P. Mallampalli, John R. Wagner
  • Method and apparatus for mixing gases
    Patent number: 6684719
    Abstract: A method and apparatus for mixing a first stream of gas with a second stream of gas is provided. The method includes introducing a first stream of gas into a first stream manifold and directing the first stream from the first stream manifold into a mixing chamber via a plurality of first stream passages flow coupled to the mixing chamber. A second stream of gas is directed into the mixing chamber via at least one second stream passage flow coupled to a first end of the mixing chamber. A combined stream is formed from the first and second streams, gradually converged, and discharged from the mixing chamber through a mixing chamber exit port.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: February 3, 2004
    Assignee: Caterpillar Inc
    Inventors: Gerrick S. Gehner, Russel R. Graze, Jr., Kartik G. Iyer, Korby A. Koch, Hemant P. Mallampalli, John R. Wagner
  • METHOD AND APPARATUS FOR MIXING GASES
    Publication number: 20030205096
    Abstract: A method and apparatus for mixing a first stream of gas with a second stream of gas is provided. The method includes introducing a first stream of gas into a first stream manifold and directing the first stream from the first stream manifold into a mixing chamber via a plurality of first stream passages flow coupled to the mixing chamber. A second stream of gas is directed into the mixing chamber via at least one second stream passage flow coupled to a first end of the mixing chamber. A combined stream is formed from the first and second streams, gradually converged, and discharged from the mixing chamber through a mixing chamber exit port.
    Type: Application
    Filed: May 3, 2002
    Publication date: November 6, 2003
    Inventors: Gerrick S. Gehner, Russel R. Graze, Kartik G. Iyer, Korby A. Koch, Hemant P. Mallampalli, John E. Wagner