Patents by Inventor Keith D. Requard

Keith D. Requard 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).

  • System and method using time-domain reflectometry to measure a level of a liquid
    Patent number: 11280660
    Abstract: A system for measuring a level of a liquid may include a receptacle, a probe, a pulsing unit, and a digitizer. The receptacle has a top and a bottom and is configured to contain the liquid. The probe may extend into the receptacle through the bottom. The pulsing unit is configured to transmit a pulse to the probe. The digitizer is configured to receive at least a first reflected pulse and a second reflected pulse from the probe. The time between the first reflected pulse and the second reflected pulse may be calculated and converted to a distance that is indicative of the level of the liquid in the receptacle.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: March 22, 2022
    Assignee: GE-Hitachi Nuclear Energy Americas LLC
    Inventors: William Francis Splichal, Jr., Yogeshwar Dayal, Jonathan R. Earnhart, Andrew F. Fidler, Steven D. Sawyer, Keith D. Requard
  • SYSTEM AND METHOD USING TIME-DOMAIN REFLECTOMETRY TO MEASURE A LEVEL OF A LIQUID
    Publication number: 20200386603
    Abstract: A system for measuring a level of a liquid may include a receptacle, a probe, a pulsing unit, and a digitizer. The receptacle has a top and a bottom and is configured to contain the liquid. The probe may extend into the receptacle through the bottom. The pulsing unit is configured to transmit a pulse to the probe. The digitizer is configured to receive at least a first reflected pulse and a second reflected pulse from the probe. The time between the first reflected pulse and the second reflected pulse may be calculated and converted to a distance that is indicative of the level of the liquid in the receptacle.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 10, 2020
    Applicant: GE-Hitachi Nuclear Energy Americas LLC
    Inventors: William Francis Splichal, JR., Yogeshwar Dayal, Jonathan R. Earnhart, Andrew F. Fidler, Steven D. Sawyer, Keith D. Requard