Patents by Inventor Mark Tschann

Mark Tschann 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).

  • Multiple channel selector valve
    Patent number: 11598431
    Abstract: A multiple channel selector valve includes a stator and a rotor that is rotatable with respect to the stator. The rotor face includes first and second fluid flow paths for transferring fluids to selected sets of passages in the stator. The fluid flow paths in the rotor face are specifically configured to accommodate high fluid flow rate regimes while reducing flow restriction.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 7, 2023
    Assignee: IDEX Health & Science, LLC
    Inventors: Michael Keller, Audrey Schrock, Mark Tschann, Ashna Sandhu
  • Multiple Channel Selector Valve
    Publication number: 20210388909
    Abstract: A multiple channel selector valve includes a stator and a rotor that is rotatable with respect to the stator. The rotor face includes first and second fluid flow paths for transferring fluids to selected sets of passages in the stator. The fluid flow paths in the rotor face are specifically configured to accommodate high fluid flow rate regimes while reducing flow restriction.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 16, 2021
    Inventors: Michael Keller, Audrey Schrock, Mark Tschann, Ashna Sandhu
  • High pressure valve with multi-piece stator assembly
    Patent number: 10520477
    Abstract: Valve with multi-piece stator assembly for use with liquid chromatography or other analytical systems. A separate and removable stator plate is provided with a mounting device to provide a multi-piece stator assembly. The mounting device is adapted on one side to engage and contact the stator plate, and on the other side includes a plurality of ports for fluidic connections which are in fluid communication with fluid passageways in the stator plate. By making the stator face a separate component, the overall costs of the valve can be reduced, different materials can be used for the mounting device and the stator, and the valve can be used for ultra-high pressure applications, including in liquid chromatography and other analytical instrument systems.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: December 31, 2019
    Assignee: IDEX Health & Science LLC
    Inventors: Quan Liu, Jon Nichols, Jeremy Hayes, Carl Sims, Mark Tschann
  • High Pressure Valve With Multi-Piece Stator Assembly
    Publication number: 20180164259
    Abstract: Valve with multi-piece stator assembly for use with liquid chromatography or other analytical systems. A separate and removable stator plate is provided with a mounting device to provide a multi-piece stator assembly. The mounting device is adapted on one side to engage and contact the stator plate, and on the other side includes a plurality of ports for fluidic connections which are in fluid communication with fluid passageways in the stator plate. By making the stator face a separate component, the overall costs of the valve can be reduced, different materials can be used for the mounting device and the stator, and the valve can be used for ultra-high pressure applications, including in liquid chromatography and other analytical instrument systems.
    Type: Application
    Filed: November 7, 2017
    Publication date: June 14, 2018
    Inventors: Quan Liu, Jon Nichols, Jeremy Hayes, Carl Sims, Mark Tschann