Patents by Inventor Dietmar Reinke

Dietmar Reinke 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).

  • Patent number: 4797246
    Abstract: A process is disclosed for the continuous manufacture of a perforated plastic film, where the plastic film is extruded directly from the extrusion unit either onto one roller of a pair of rollers or directly into the gap between a pair of rollers (a perforating/texturing roller and a back-up roller). The hot plastic film is perforated on a roller under the influence of a vacuum and shock cooling by the flow of cold air and the coolness of the back-up roller is carried out during the perforating step, and immediately thereafter. The film is preferably textured at the same time that it is perforated, the immediate cooling setting the texture in the film.
    Type: Grant
    Filed: January 25, 1984
    Date of Patent: January 10, 1989
    Inventors: Dietmar Reinke, Theo Schmidt