Patents by Inventor Andre Hiss

Andre Hiss 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).

  • Destructible core for undercut casting
    Patent number: 5310159
    Abstract: Destructible cores useful particularly for shaping the internal channels of cast propellant blocks. The cores include at least one elongated element which is shaped, for example by winding, the cohesion of which is ensured by way of a joining material and a portion of which is accessible from the exterior of the component to be cast. In order to obtain quickly cores having a high rigidity, the shaped element is a band which includes interlaced wires having free spaces, the joining material filling the free spaces.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: May 10, 1994
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Andre Hiss, Jean-Michel Tauzia