Patents by Inventor Joseph Dmitry Kirzhner

Joseph Dmitry Kirzhner 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).

  • Methods and apparatus for measuring rotating machine clearances
    Patent number: 6949939
    Abstract: A method of monitoring a clearance distance between a rotatable member and a stationary member within a rotary machine is provided. The method includes exciting a probe with a first modulation signal when the rotatable member is rotating at less than or equal to a predetermined rate, exciting the probe with a second modulation signal when the rotatable member is rotating at greater than the predetermined rate, measuring the clearance distance between the rotatable member and the stationary member using the probe excited with at least one of the first modulation signal and the second modulation signal.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: September 27, 2005
    Assignee: General Electric Company
    Inventor: Joseph Dmitry Kirzhner
  • Methods and systems for machine monitoring system calibration
    Patent number: 6848193
    Abstract: A method of measuring a clearance distance between a first member and a stationary member is provided. The method includes measuring the clearance distance using a first probe that is removably coupled at least partially within a mounting adapter, determining a first probe calibration based on the measured clearance distance, measuring a gauge clearance distance using a second probe, and modifying the first probe calibration based on the gauge clearance distance.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: February 1, 2005
    Assignee: General Electric Company
    Inventor: Joseph Dmitry Kirzhner
  • Methods and apparatus for measuring rotating machine clearances
    Publication number: 20040251916
    Abstract: A method of monitoring a clearance distance between a rotatable member and a stationary member within a rotary machine is provided. The method includes exciting a probe with a first modulation signal when the rotatable member is rotating at less than or equal to a predetermined rate, exciting the probe with a second modulation signal when the rotatable member is rotating at greater than the predetermined rate, measuring the clearance distance between the rotatable member and the stationary member using the probe excited with at least one of the first modulation signal and the second modulation signal.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventor: Joseph Dmitry Kirzhner