Patents by Inventor Caroline R. Hearn

Caroline R. Hearn 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).

  • Three-way modulating valve for temperature control
    Patent number: 11519680
    Abstract: A temperature sensor for a first fluid senses a temperature of the first fluid downstream of a heat exchanger. A supply for a second fluid changes a temperature of the first fluid. The supply for the second fluid passes through the heat exchanger. A valve is positioned upstream of the said heat exchanger on the supply for the second fluid, and controls a flow rate of the second fluid diverted into a bypass line compared to a flow rate of the second fluid directed through the heat exchanger, with the three-way valve controlled by a control in response to feedback from said temperature sensor. The valve changes the respective flow rates delivered into the bypass line and through the said heat exchanger in a non-linear manner with a change in valve position. A manned spaceship is also disclosed.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: December 6, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Catherine G. Pratt, Caroline R. Hearn, Diego S. Mugurusa
  • THREE-WAY MODULATING VALVE FOR TEMPERATURE CONTROL
    Publication number: 20200348092
    Abstract: A temperature sensor for a first fluid senses a temperature of the first fluid downstream of a heat exchanger. A supply for a second fluid changes a temperature of the first fluid. The supply for the second fluid passes through the heat exchanger. A valve is positioned upstream of the said heat exchanger on the supply for the second fluid, and controls a flow rate of the second fluid diverted into a bypass line compared to a flow rate of the second fluid directed through the heat exchanger, with the three-way valve controlled by a control in response to feedback from said temperature sensor. The valve changes the respective flow rates delivered into the bypass line and through the said heat exchanger in a non-linear manner with a change in valve position. A manned spaceship is also disclosed.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Inventors: Catherine G. Pratt, Caroline R. Hearn, Diego S. Mugurusa
  • THREE-WAY MODULATING VALVE FOR TEMPERATURE CONTROL
    Publication number: 20190041145
    Abstract: A temperature sensor for a first fluid senses a temperature of the first fluid downstream of a heat exchanger. A supply for a second fluid changes a temperature of the first fluid. The supply for the second fluid passes through the heat exchanger. A valve is positioned upstream of the said heat exchanger on the supply for the second fluid, and controls a flow rate of the second fluid diverted into a bypass line compared to a flow rate of the second fluid directed through the heat exchanger, with the three-way valve controlled by a control in response to feedback from said temperature sensor. The valve changes the respective flow rates delivered into the bypass line and through the said heat exchanger in a non-linear manner with a change in valve position. A manned spaceship is also disclosed.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 7, 2019
    Inventors: Catherine G. Pratt, Caroline R. Hearn, Diego Mugurusa