Patents by Inventor Roger Pennamen

Roger Pennamen 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).

  • Method and apparatus for fibring mineral wool by free centrifugation
    Patent number: 5131935
    Abstract: A method and an apparatus for fibring mineral wool by free centrifugation. An auxiliary gas current is generated at a distance from the centrifuging wheels in substantially the same direction as a main gas current which is emitted in the immediate proximity of the centrifuging wheels. This auxiliary gas current is obtained by passing air between the centrifuging wheels and/or through use of a supplementary blower ring. The invention applies particularly to the production of rock wool.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: July 21, 1992
    Assignee: Isover Saint-Gobain
    Inventors: Alain Debouzie, Christopher Ellison, Roger Pennamen