Patents by Inventor John K. Yook

John K. Yook 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).

  • Power producing device with control mechanism
    Patent number: 9371739
    Abstract: A power-producing device, such as a ram air turbine, includes a controller that is used to control operation of a turbine of the power-producing device. The controller uses an input based on an airspeed of the aircraft as part of a control mechanism in the controller for controlling the turbine. For example controller may be used to control backpressure of the turbine, for example by controlling the angle of doors of that are used to adjust backpressure of the turbine. The control mechanism may include a PID controller, with the gain of one or more of the values of the PID controller being a function of the airspeed of the aircraft. In addition the control mechanism may include manipulating a setpoint as a function of load on the power-producing device. The power-producing device may be part of a detachable pod that is installed on the aircraft.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: June 21, 2016
    Assignee: Raytheon Company
    Inventors: Brendan H Robinson, John K Yook, John H Steele
  • POWER PRODUCING DEVICE WITH CONTROL MECHANISM
    Publication number: 20140193236
    Abstract: A power-producing device, such as a ram air turbine, includes a controller that is used to control operation of a turbine of the power-producing device. The controller uses an input based on an airspeed of the aircraft as part of a control mechanism in the controller for controlling the turbine. For example controller may be used to control backpressure of the turbine, for example by controlling the angle of doors of that are used to adjust backpressure of the turbine. The control mechanism may include a PID controller, with the gain of one or more of the values of the PID controller being a function of the airspeed of the aircraft. In addition the control mechanism may include manipulating a setpoint as a function of load on the power-producing device. The power-producing device may be part of a detachable pod that is installed on the aircraft.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 10, 2014
    Applicant: RAYTHEON COMPANY
    Inventors: Brendan H. Robinson, John K. Yook, John H. Steele