Patents by Inventor Ryan Harrell

Ryan Harrell 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).

  • Automatic air defrost system
    Patent number: 10476416
    Abstract: A method and apparatus for controlling the direction of a defrost device for refrigeration coils includes measuring the current drawn by or the torque produced by a permanent magnet motor, wherein the permanent magnet motor powers a defrost device recurrently back and forth along refrigeration coils and reverses the direction of the permanent magnet motor when the measured current drawn or measured torque produced are at or above a first limit. The method omits the use of switches and sensors to signal when the defrost device is reversed to reduce failures and stoppages.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 12, 2019
    Assignee: John Bean Technologies Corporation
    Inventors: Ryan Harrell, Alan McGinnis, John D. Woodburn
  • AUTOMATIC AIR DEFROST SYSTEM
    Publication number: 20180112907
    Abstract: A method and apparatus for controlling the direction of a defrost device for refrigeration coils includes measuring the current drawn by or the torque produced by a permanent magnet motor, wherein the permanent magnet motor powers a defrost device recurrently back and forth along refrigeration coils and reverses the direction of the permanent magnet motor when the measured current drawn or measured torque produced are at or above a first limit. The method omits the use of switches and sensors to signal when the defrost device is reversed to reduce failures and stoppages.
    Type: Application
    Filed: October 24, 2016
    Publication date: April 26, 2018
    Applicant: John Bean Technologies Corporation
    Inventors: Ryan Harrell, Alan McGinnis, John D. Woodburn