Patents by Inventor Bradley McRoberts

Bradley McRoberts 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).

  • Metering valve with stepper motor-controlled rotary follow-up servo
    Patent number: 12281721
    Abstract: A metering valve includes a valve body, a valve element, a rotary servo, and a stepper motor. The valve body has a valve chamber, a fluid inlet port, a fluid outlet port, a metering valve control pressure inlet port, a servo control pressure inlet port, and a servo control pressure outlet port. The valve element is movably disposed within the valve chamber and defines therein at least a control pressure chamber and a return pressure chamber. The valve element is responsive to fluid pressure in the control pressure chamber to move between a closed position and a plurality of open positions. The rotary servo is rotatable about a rotational axis to a plurality of servo positions to thereby vary fluid pressure in the control pressure chamber. The stepper motor is responsive to commands to rotate the rotary servo to a commanded servo position.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: April 22, 2025
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: J. Dugan Shelby, Bradley McRoberts, Martin Dutka, Austin Hasse, Sammuel Tillich
  • METERING VALVE WITH STEPPER MOTOR-CONTROLLED ROTARY FOLLOW-UP SERVO
    Publication number: 20220364658
    Abstract: A metering valve includes a valve body, a valve element, a rotary servo, and a stepper motor. The valve body has a valve chamber, a fluid inlet port, a fluid outlet port, a metering valve control pressure inlet port, a servo control pressure inlet port, and a servo control pressure outlet port. The valve element is movably disposed within the valve chamber and defines therein at least a control pressure chamber and a return pressure chamber. The valve element is responsive to fluid pressure in the control pressure chamber to move between a closed position and a plurality of open positions. The rotary servo is rotatable about a rotational axis to a plurality of servo positions to thereby vary fluid pressure in the control pressure chamber. The stepper motor is responsive to commands to rotate the rotary servo to a commanded servo position.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 17, 2022
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: J. Dugan Shelby, Bradley McRoberts, Martin Dutka, Austin Hasse, Sammuel Tillich