Patents by Inventor Lothar Steinsdorfer

Lothar Steinsdorfer 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).

  • Process for the manufacture of an injection mould
    Patent number: 4832254
    Abstract: An injection mould having several gating points (3) which are all supplied with moulding material at the same time has a hot runner manifold (2) situated in a composite body. The composite body is composed of several plates (9,11,12,13,9') in which both the system of hot runners (2) and the tubular heating elements (10) required for heating are formed, starting from the surfaces of separation (F1, F2, F3, F4), whereupon the individual surfaces are joined together by diffusion welding after they have been pretreated as required (FIG. 2).
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 23, 1989
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Helmut Peuke, Gerd Riedel, Lothar Steinsdorfer