Patents by Inventor Mitrajyoti Deka

Mitrajyoti Deka 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: 8202471
    Abstract: A heat treatment or heat soak furnace for use in both galvannealing and galvanizing processes including a heating apparatus configured to supply heat and remove heat. The heating apparatus may draw hot air from the exhaust of a direct fire strip annealing furnace, gas burners or electric heat exchangers as necessary. The furnace also may include a plurality of cooling mechanisms in order to ensure heat is removed and the temperature within the furnace regulated. In addition, the furnace may include baffles configured to allow portions of the interior of the furnace to be separated into different temperature zones.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: June 19, 2012
    Assignee: ArcelorMittal Investigación y Desarrollo, S.L. (AMID)
    Inventors: Mitrajyoti Deka, Stavros George Fountoulakis, Ramachandra S Patil
  • Publication number: 20110308672
    Abstract: A heat treatment or heat soak furnace for use in both galvannealing and galvanizing processes including a heating apparatus configured to supply heat and remove heat. The heating apparatus may draw hot air from the exhaust of a direct fire strip annealing furnace, gas burners or electric heat exchangers as necessary. The furnace also may include a plurality of cooling mechanisms in order to ensure heat is removed and the temperature within the furnace regulated. In addition, the furnace may include baffles configured to allow portions of the interior of the furnace to be separated into different temperature zones.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Applicant: ARCELORMITTAL INVESTIGACION Y DESARROLLO, S.L.
    Inventors: Mitrajyoti Deka, Stavros George Fountoulakis, Ramachandra S. Patil
  • Patent number: 8025835
    Abstract: A heat treatment or heat soak furnace for use in both galvannealing and galvanizing processes including a heating apparatus configured to supply heat and remove heat. The heating apparatus may draw hot air from the exhaust of a direct fire strip annealing furnace, gas burners or electric heat exchangers as necessary. The furnace also may include a plurality of cooling mechanisms in order to ensure heat is removed and the temperature within the furnace regulated. In addition, the furnace may include baffles configured to allow portions of the interior of the furnace to be separated into different temperature zones.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: September 27, 2011
    Assignee: ArcelorMittal Investigación y Desarrollo, S.L.
    Inventors: Mitrajyoti Deka, Stavros George Fountoulakis, Ramachandra S. Patil
  • Publication number: 20090031950
    Abstract: A heat treatment or heat soak furnace for use in both galvannealing and galvanizing processes including a heating apparatus configured to supply heat and remove heat. The heating apparatus may draw hot air from the exhaust of a direct fire strip annealing furnace, gas burners or electric heat exchangers as necessary. The furnace also may include a plurality of cooling mechanisms in order to ensure heat is removed and the temperature within the furnace regulated. In addition, the furnace may include baffles configured to allow portions of the interior of the furnace to be separated into different temperature zones.
    Type: Application
    Filed: September 6, 2007
    Publication date: February 5, 2009
    Applicant: ISG TECHNOLOGIES INC.
    Inventors: Mitrajyoti Deka, Stavros George Fountoulakis, Ramachandra S. Patil
  • Patent number: 5785772
    Abstract: A method for controlling operation of a galvanneal induction furnace includes the steps of providing a steel strip having a molten zinc coating applied thereto and transporting the strip to an induction furnace in which the strip and coating are to be alloyed. The temperature which the strip is estimated to attain just prior to entering the furnace is then calculated. A temperature which the strip should achieve during the alloying reaction is then selected. The power which must be applied to the furnace to elevate the strip temperature from the estimated temperature to the alloying temperature is then calculated. Power is then supplied to the furnace.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: July 28, 1998
    Assignee: Bethlehem Steel Corporation
    Inventor: Mitrajyoti Deka
  • Patent number: 4976150
    Abstract: A transducer including a piezoelectric layer and a coupling medium in the form of matching layers for matching the transducer impedance to that of air. The transducer may be used in the measurement of the strength of paper, the detection of defects in a multilayer composite material and the measurement of their properties, among other uses.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: December 11, 1990
    Assignee: Bethlehem Steel Corporation
    Inventor: Mitrajyoti Deka