Patents by Inventor Samuel Thobois

Samuel Thobois 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).

  • Boiler having a flue gas recycling circuit
    Patent number: 5375538
    Abstract: A boiler having vertical walls of large size constituted by screens of heat exchanger tubes, fitted with a flue gas recycling circuit, and including a prismatic bottom portion referred to as an "ash box". The recycled combustion gases are fed via at least one duct that opens out into one of the end walls of a hopper disposed beneath the ash box.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: December 27, 1994
    Assignee: Stein Industrie
    Inventors: Bernard Goussu, Samuel Thobois