Patents by Inventor Bernard Sans

Bernard Sans 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).

  • Device for opening and closing a vessel containing a metal in the liquid state
    Patent number: 5162093
    Abstract: A device for opening and closing a vessel containing a metal in the liquid state. The device comprises a frustoconical sealing stopper extended by a guide rod, and a means for maneuvering the sealing stopper including two arms of different lengths, which are parallel to each other in the position for closing the device, a first, movable connecting element to which the arms are rotatably joined at one end thereof, the first connecting element being fixed to the guide rod, and a second connecting element fixed to the lateral wall of the vessel, to which the arms are rotatably joined at the other end. The arms are arranged such that the shorter of the two arms is the further from the vessel while the apparatus is in the closed position.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: November 10, 1992
    Assignee: Aluminium Pechiney
    Inventors: Armand Fournier, Bernard Sans