Patents by Inventor Levon H. Yeriazarian

Levon H. Yeriazarian 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).

  • Position sensor for a downhole completion device
    Patent number: 8237443
    Abstract: The position of a movable downhole component such as a sleeve in a choke valve is monitored and determined using an array of sensors, preferably Hall Effect sensors that measure the strength of a magnetic field from a magnet that travels with the sleeve. The sensors measure the field strength and output a voltage related to the strength of the field that is detected. A plurality of sensors, with readings, transmits signals to a microprocessor to compute the magnet position directly. The sensors are in the tool body and are not mechanically coupled to the sleeve. The longitudinal position of the sleeve is directly computed using less than all available sensors to facilitate the speed of transmission of data and computation of actual position using known mathematical techniques.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: August 7, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Don A. Hopmann, Daniel M. Cousin, Levon H. Yeriazarian, Juan P. Franco, Ahmed J. Jasser, Priyesh Ranjan
  • Position Sensor for a Downhole Completion Device
    Publication number: 20090128141
    Abstract: The position of a movable downhole component such as a sleeve in a choke valve is monitored and determined using an array of sensors, preferably Hall Effect sensors that measure the strength of a magnetic field from a magnet that travels with the sleeve. The sensors measure the field strength and output a voltage related to the strength of the field that is detected. A plurality of sensors, with readings, transmits signals to a microprocessor to compute the magnet position directly. The sensors are in the tool body and are not mechanically coupled to the sleeve. The longitudinal position of the sleeve is directly computed using less than all available sensors to facilitate the speed of transmission of data and computation of actual position using known mathematical techniques.
    Type: Application
    Filed: November 4, 2008
    Publication date: May 21, 2009
    Inventors: Don A. Hopmann, Daniel M. Cousin, Levon H. Yeriazarian, Juan P. Franco, Ahmed J. Jasser, Priyesh Ranjan