Patents by Inventor Joseph Jean Roy

Joseph Jean Roy 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).

  • Heating system having high-low temperature limit controlled auxiliary boiler
    Patent number: 4037779
    Abstract: A standard hot water heating system is improved by adding a high-low temperature limit controlled auxiliary boiler. The auxiliary boiler is smaller than the main boiler and the burner for the auxiliary boiler is, of course, smaller than the burner for the main boiler and uses less fuel. In a particular embodiment, the auxiliary boiler continuously maintains the temperature in both boilers within the range of about 170.degree.-212.degree. F. As a result of the constantly maintained elevated water temperature in the main boiler, less time is required for the main boiler burner to heat up the system upon the demand of a room thermostat.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: July 26, 1977
    Inventors: Joseph Jean Roy, Lorenzo Roy