Patents by Inventor Stefan Tobias Hirsch

Stefan Tobias Hirsch 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).

  • Contact tray for a mass transfer column
    Patent number: 9199206
    Abstract: The valve cover has a guide vane extending laterally and downwardly from the central portion towards and in spaced relation to the tray deck for deflecting a majority of the vapor passing upwardly through an orifice downward towards the tray deck. A de-entrainment device with a downwardly angled deflector in vertical alignment with an orifice in the tray deck may be integrated or not with the valve cover below the tray deck.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: December 1, 2015
    Assignee: SULZER CHEMTECH AG
    Inventors: Mark W. Pilling, Stefan Tobias Hirsch, Markus Friedrich Fischer
  • Contact tray for a mass transfer column
    Patent number: 8944419
    Abstract: The valve cover has a guide vane extending laterally and downwardly from the central portion towards and in spaced relation to the tray deck for deflecting a majority of the vapor passing upwardly through an orifice downward towards the tray deck. A de-entrainment device with a downwardly angled deflector in vertical alignment with an orifice in the tray deck may be integrated or not with the valve cover below the tray deck.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: February 3, 2015
    Assignee: Sulzer Chemtech AG
    Inventors: Mark W. Pilling, Stefan Tobias Hirsch, Markus Friedrich Fischer
  • Contact tray for a mass transfer column
    Patent number: 8720870
    Abstract: The valve cover has a guide vane extending laterally and downwardly from the central portion towards and in spaced relation to the tray deck for deflecting a majority of the vapor passing upwardly through an orifice downward towards the tray deck. A de-entrainment device with a downwardly angled deflector in vertical alignment with an orifice in the tray deck may be integrated or not with the valve cover below the tray deck.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: May 13, 2014
    Assignee: Sulzer Chemtech AG
    Inventors: Mark W. Pilling, Stefan Tobias Hirsch, Markus Friedrich Fischer
  • CONTACT TRAY FOR A MASS TRANSFER COLUMN
    Publication number: 20130062793
    Abstract: The valve cover has a guide vane extending laterally and downwardly from the central portion towards and in spaced relation to the tray deck for deflecting a majority of the vapor passing upwardly through an orifice downward towards the tray deck. A de-entrainment device with a downwardly angled deflector in vertical alignment with an orifice in the tray deck may be integrated or not with the valve cover below the tray deck.
    Type: Application
    Filed: April 29, 2011
    Publication date: March 14, 2013
    Inventors: Mark W. Pilling, Stefan Tobias Hirsch, Markus Friedrich Fischer
  • Contact tray for a mass transfer column
    Publication number: 20110278744
    Abstract: The valve cover has a guide vane extending laterally and downwardly from the central portion towards and in spaced relation to the tray deck for deflecting a majority of the vapor passing upwardly through an orifice downward towards the tray deck. A de-entrainment device with a downwardly angled deflector in vertical alignment with an orifice in the tray deck may be integrated or not with the valve cover below the tray deck.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 17, 2011
    Inventors: Mark W. Pilling, Stefan Tobias Hirsch, Markus Friedrich Fischer
  • Contact tray for a mass transfer column
    Publication number: 20110278745
    Abstract: The valve cover has a guide vane extending laterally and downwardly from the central portion towards and in spaced relation to the tray deck for deflecting a majority of the vapor passing upwardly through an orifice downward towards the tray deck. A de-entrainment device with a downwardly angled deflector in vertical alignment with an orifice in the tray deck may be integrated or not with the valve cover below the tray deck.
    Type: Application
    Filed: February 25, 2011
    Publication date: November 17, 2011
    Inventors: Mark W. Pilling, Stefan Tobias Hirsch, Markus Friedrich Fischer