Patents by Inventor Shamili Krishnamurthy

Shamili Krishnamurthy 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).

  • Air-oxygen blender with periodic pressure venting
    Patent number: 11294404
    Abstract: An air/oxygen blender, optionally with an associated oxygen analyzer, is provided with an exhaust valve in fluid communication with one or more of a proportioning valve and a gas outlet which periodically opens to vent gas therefrom. The exhaust valve is preferably an electrically actuated valve, most preferably a solenoid valve, controlled by a control unit which periodically opens the exhaust valve. In another embodiment, an oxygen analyzer is provided with an exhaust valve in fluid communication with an oxygen sensing chamber. Preferably, the control unit controls the frequency of exhaust valve opening and the time period of exhaust valve opening. A method of prevention of contamination of a lower pressure source air or source oxygen connected to an air/oxygen blender is accomplished by periodically venting of gas from the exhaust valve.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: April 5, 2022
    Assignee: Bio-Med Devices, Inc.
    Inventors: Raymond J. Huey, Jack N. Sandgren, Shamili Krishnamurthy, Ronald C. Baktis
  • Air-Oxygen Blender With Periodic Pressure Venting
    Publication number: 20220100213
    Abstract: An air/oxygen blender, optionally with an associated oxygen analyzer, is provided with an exhaust valve in fluid communication with one or more of a proportioning valve and a gas outlet which periodically opens to vent gas therefrom. The exhaust valve is preferably an electrically actuated valve, most preferably a solenoid valve, controlled by a control unit which periodically opens the exhaust valve. In another embodiment, an oxygen analyzer is provided with an exhaust valve in fluid communication with an oxygen sensing chamber. Preferably, the control unit controls the frequency of exhaust valve opening and the time period of exhaust valve opening. A method of prevention of contamination of a lower pressure source air or source oxygen connected to an air/oxygen blender is accomplished by periodically venting of gas from the exhaust valve.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 31, 2022
    Inventors: Raymond J. Huey, Jack N. Sandgren, Shamili Krishnamurthy, Ronald C. Baktis