Patents by Inventor Michael A Unger

Michael A Unger 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).

  • Incremental annular choke
    Patent number: 7575058
    Abstract: An annular choke mechanism is incorporated into a flow path within the outer housing of the sleeve valve to the interior flow ports of the sliding sleeve member. As the sliding sleeve member is moved axially within the housing, the lateral fluid ports of the sliding sleeve member are aligned within particular bore portions so that the size of the annular space between the fluid ports in the housing and the fluid ports in the sleeve is varied. The annular flow area through the annular space governs the rate of fluid flow through the valve.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: August 18, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Juan P. Franco, Michael A Unger
  • Incremental annular choke
    Publication number: 20090014185
    Abstract: An annular choke mechanism is incorporated into a flow path within the outer housing of the sleeve valve to the interior flow ports of the sliding sleeve member. As the sliding sleeve member is moved axially within the housing, the lateral fluid ports of the sliding sleeve member are aligned within particular bore portions so that the size of the annular space between the fluid ports in the housing and the fluid ports in the sleeve is varied. The annular flow area through the annular space governs the rate of fluid flow through the valve.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Juan P. Franco, Michael A. Unger