Patents by Inventor Sylvain Douzet

Sylvain Douzet 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).

  • Defrosting methodology for heat pump water heating system
    Patent number: 7028494
    Abstract: Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. When a sensor detects that frozen water droplets form on the evaporator, a valve positioned between the discharge of the compression and inlet of expansion device is opened. Refrigerant from the discharge of the compressor bypasses the gas cooler and enters the inlet of the expansion device. The high temperature refrigerant melts the frost on the evaporator. As the frost melts, the passage of the evaporator is opened to allow air to flow through the evaporator.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: April 18, 2006
    Assignee: Carrier Corporation
    Inventors: Nicolas Pondicq-Cassou, Jean-Philippe Goux, Yu Chen, Julio Concha, Tobias Sienel, Sylvain Douzet
  • Defrosting methodology for heat pump water heating system
    Publication number: 20050039473
    Abstract: Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. When a sensor detects that frozen water droplets form on the evaporator, a valve positioned between the discharge of the compression and inlet of expansion device is opened. Refrigerant from the discharge of the compressor bypasses the gas cooler and enters the inlet of the expansion device. The high temperature refrigerant melts the frost on the evaporator. As the frost melts, the passage of the evaporator is opened to allow air to flow through the evaporator.
    Type: Application
    Filed: August 22, 2003
    Publication date: February 24, 2005
    Inventors: Nicolas Pondicq-Cassou, Jean-Philippe Goux, Yu Chen, Julio Concha, Tobias Sienel, Sylvain Douzet