Patents by Inventor Roger Marc Levesque

Roger Marc Levesque 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).

  • Pressure control for refrigerant system
    Patent number: 10132542
    Abstract: A system includes a condenser and an evaporator. The condenser is configured to condense a working fluid, and the evaporator is configured to evaporate the working fluid. The system also includes piping that is configured to circulate the working fluid between the condenser and the evaporator. In addition, the system includes a low point configured to collect condensed working fluid. A controller is configured to selectively enable heating of the condensed working fluid collected within the low point based on a working fluid pressure of the low point.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: November 20, 2018
    Assignee: Johnson Controls Technology Company
    Inventors: Paul Marie de Larminat, Roger Marc Levesque
  • PRESSURE CONTROL FOR REFRIGERANT SYSTEM
    Publication number: 20150308723
    Abstract: A system includes a condenser and an evaporator. The condenser is configured to condense a working fluid, and the evaporator is configured to evaporate the working fluid. The system also includes piping that is configured to circulate the working fluid between the condenser and the evaporator. In addition, the system includes a low point configured to collect condensed working fluid. A controller is configured to selectively enable heating of the condensed working fluid collected within the low point based on a working fluid pressure of the low point.
    Type: Application
    Filed: November 15, 2013
    Publication date: October 29, 2015
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Paul Marie de Larminat, Roger Marc Levesque