Patents by Inventor Gedeon Drouin

Gedeon Drouin 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).

  • Thermo-electronic system to correct for thermal deformation of a restrained plate
    Patent number: 4718323
    Abstract: The thermal deformation of an edge-restrained plate is expressed as a deflection of the plate out of its plane. Where the plate is used as a reference plane, the deformation of the plate can be quantitatively monitored and compensated for. In the case of a radiantly heated plate, the temperature gradient adjacent an edge of the plate is a linear function of the plate deformation. With convective cooling, the temperature drop from an initial condition relates linearly to deformation. Consequently, relatively simple temperature measurements will provide the necessary information. The invention has particular application to the roof of a military tank turret that is used as a reference plane for a gun sighting system.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: January 12, 1988
    Assignee: Her Majesty the Queen in right of Canada as represented by the Minister of National Defence
    Inventors: David H. Gladstone, Jacques Dubois, Raymond Carbonneau, Gedeon Drouin