Patents by Inventor Gerd Albrecht

Gerd Albrecht 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).

  • Extrusion apparatus for producing composite structures
    Patent number: 4161385
    Abstract: Extrusion-die system comprising an extrusion slit (3) fed upstream by two flows of polymeric materials, one of which issues from one or several flat conduits (7,8), the other from a multitude of small holes (18) drilled into a bar element of generally T-shaped cross-section (5). The cross-section of element (5) has a punch-like configuration with the holes being fashioned therein in two parallel rows and being staggered from one row to the other. The die system permits manufacture of products comprising a network of threads or filaments sheathed in a film or foil.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: July 17, 1979
    Assignee: Beghin-Say
    Inventors: Guy Goldstein, Yves Roussin-Moynier, Gerd Albrecht