Patents by Inventor Arnold Aschemann

Arnold Aschemann 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).

  • Wear-resistant housing for an extrusion device
    Patent number: 5110284
    Abstract: A corrosion-resistant and wear resistant housing for a screw extruder having one or more axis-parallel bores, each of which accommodates a screw of the extruder. Support sleeves, which have a smaller internal diameter than the screw bore or bores and which guide the rotating screw or screws are disposed in the two end regions of the housing poritons, whereby the corrosion and wear caused by the material being extruded are primarily restricted to the support sleeves.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: May 5, 1992
    Assignee: Hermann Berstorff Maschinenbau GmbH
    Inventors: Manfred Dienst, Arnold Aschemann