Patents by Inventor Galina Vladimirovna Cherkashina

Galina Vladimirovna Cherkashina 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).

  • Pressure transmitter with overpressure protection
    Patent number: 10048152
    Abstract: A process fluid pressure transmitter is provided. The process fluid pressure transmitter includes a pressure sensor having an electrical characteristic that changes in response to a deformation of the pressure sensor in response to pressure. Measurement circuitry is coupled to the pressure sensor and is configured to provide an indication of the electrical characteristic. An isolation diaphragm is configured to contact the process fluid and deform in response to process fluid pressure. A substantially incompressible fill fluid fluidically couples the isolation diaphragm to the pressure sensor. An overpressure compliant structure is coupled to the fill fluid and is configured to be substantially rigid at pressures below a selected threshold, but to deform in response to pressure above the selected threshold.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: August 14, 2018
    Assignee: Rosemount Inc.
    Inventors: Aleksandr Valdimirovich Fetisov, Pavel Aleksandrovich Petukhov, Galina Vladimirovna Cherkashina, Charles R. Willcox
  • PRESSURE TRANSMITTER WITH OVERPRESSURE PROTECTION
    Publication number: 20170089793
    Abstract: A process fluid pressure transmitter is provided. The process fluid pressure transmitter includes a pressure sensor having an electrical characteristic that changes in response to a deformation of the pressure sensor in response to pressure. Measurement circuitry is coupled to the pressure sensor and is configured to provide an indication of the electrical characteristic. An isolation diaphragm is configured to contact the process fluid and deform in response to process fluid pressure. A substantially incompressible fill fluid fluidically couples the isolation diaphragm to the pressure sensor. An overpressure compliant structure is coupled to the fill fluid and is configured to be substantially rigid at pressures below a selected threshold, but to deform in response to pressure above the selected threshold.
    Type: Application
    Filed: May 6, 2016
    Publication date: March 30, 2017
    Inventors: Aleksandr Valdimirovich Fetisov, Pavel Aleksandrovich Petukhov, Galina Vladimirovna Cherkashina, Charles R. Willcox