Patents by Inventor Abhishek Chowdhury

Abhishek Chowdhury 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: 9279344
    Abstract: A poppet element of a valve is provided. The poppet element is movable relative to a valve seat of the valve and includes a balance chamber wall defining a balance chamber with a center body partially fixed relative to the valve seat, an upper head, a balance chamber holder having a coefficient of thermal expansion (CTE) that is matched with that of the upper head and a fastening element disposed to fasten the balance chamber holder to the upper head. The balance chamber holder is disposed between the center body and the balance chamber wall and configured to prevent thermal loading transfer from the balance chamber wall to the fastening element.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: March 8, 2016
    Assignee: General Electric Company
    Inventors: Abhishek Chowdhury, Guido Felice Forte, Jr., Senthil Kumar Vasudevan
  • Publication number: 20150240666
    Abstract: A poppet element of a valve is provided. The poppet element is movable relative to a valve seat of the valve and includes a balance chamber wall defining a balance chamber with a center body partially fixed relative to the valve seat, an upper head, a balance chamber holder having a coefficient of thermal expansion (CTE) that is matched with that of the upper head and a fastening element disposed to fasten the balance chamber holder to the upper head. The balance chamber holder is disposed between the center body and the balance chamber wall and configured to prevent thermal loading transfer from the balance chamber wall to the fastening element.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 27, 2015
    Applicant: General Electric Company
    Inventors: Abhishek Chowdhury, Guido Felice Forte, JR., Senthil Kumar Vasudevan
  • Publication number: 20150204215
    Abstract: A steam turbomachine valve includes a valve body having an inlet portion, an outlet portion, and an interior portion. The interior portion includes an inner wall. A valve member is slidingly disposed within the interior portion of the valve body. The valve member includes an outer surface. A seal element is mounted to, and extends about, the outer surface of the valve member. The seal element is spaced from the inner wall by a gap. A seal assembly is mounted to the inner wall. The seal assembly spans the gap and is configured and disposed to contact the seal element of the valve member.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 23, 2015
    Applicant: General Electric Company
    Inventor: Abhishek Chowdhury
  • Publication number: 20150198058
    Abstract: A steam turbomachine valve includes a valve body having an inlet portion, an outlet portion, and an interior portion. The interior portion includes an inner wall. A valve member is moveably disposed within the interior portion of the valve body. The valve member includes an outer surface that is spaced from the inner wall by a gap. A floating seal is mounted to the inner wall. The floating seal spans the gap and contacts the outer surface of the valve member.
    Type: Application
    Filed: January 16, 2014
    Publication date: July 16, 2015
    Applicant: General Electric Company
    Inventor: Abhishek Chowdhury
  • Publication number: 20110297867
    Abstract: A flow valve includes a control valve having a movable body, a stop valve having a movable body; and a valve seat having a facing surface that contacts at least a portion of one of the control valve body or the stop valve body when the flow valve is in a closed position, the facing surface of the valve seat being configured to merge with a rear portion of the valve seat at a tip portion, the facing surface of the valve seat having an aerodynamic profile that provides for a guided flow in a flow direction through the flow valve.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 8, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abhishek Chowdhury, Vamshidhar Done, Vishal Girishchandra Shah, Hayagreeva Rao Karra Venkata
  • Publication number: 20110162735
    Abstract: A steam turbine valve includes a casing and an inlet in the casing through which a flow of steam flows into the valve. The valve also includes a strainer located in the casing, and a flow guide connected with the strainer to protrude out from the strainer at a location in which the flow of steam strikes the flow guide, changes direction in its flow with respect to the strainer, and passes through a flow path of the strainer to an inside portion of the strainer.
    Type: Application
    Filed: January 4, 2010
    Publication date: July 7, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abhishek Chowdhury, Vamshidhar Done, Vishal Shah