Patents by Inventor Rajesh Maruti Wajge

Rajesh Maruti Wajge 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).

  • Rotary hearth furnace
    Patent number: 6368104
    Abstract: An improved rotary hearth furnace having a cylindrical enclosure containing a radially moving belt for transporting pellets containing metal oxide and carbon is disclosed. One or more oxy-fuel burners preferably having a flat flame shape are positioned so as to provide a mixture of fuel and oxidant to the pellets countercurrent to the direction of the pellets. The oxy-fuel burners are operated so as to provide a pre-determined quantity of oxygen in addition to that necessary for combustion so that the additional oxygen oxidizes the carbon monoxide and hydrogen present in the hot combustion gases. Oxygen injectors may also be used to introduce additional oxygen into the furnace.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: April 9, 2002
    Assignee: The BOC Group, Inc.
    Inventors: Neeraj Saxena, Rajesh Maruti Wajge, Kenneth W. Grieshaber
  • Rotary hearth furnace
    Patent number: 6196836
    Abstract: An improved rotary hearth furnace having a cylindrical enclosure containing a radially moving belt for transporting pellets containing metal oxide and carbon is disclosed. One or more oxy-fuel burners preferably having a flat flame shape are positioned so as to provide a mixture of fuel and oxidant to the pellets countercurrent to the direction of the pellets. The oxy-fuel burners are operated so as to provide a pre-determined quantity of oxygen in addition to that necessary for combustion so that the additional oxygen oxidizes the carbon monoxide and hydrogen present in the hot combustion gases. Oxygen injectors may also be used to introduce additional oxygen into the furnace.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: March 6, 2001
    Assignee: The BOC Group, Inc.
    Inventors: Neeraj Saxena, Rajesh Maruti Wajge, Kenneth W. Grieshaber