Patents by Inventor Armin Doering

Armin Doering 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: 5247860
    Abstract: A method is proposed for the production of a form tool, particularly for the shaping of plate-shaped or web-shaped starting material containing fiber material, comprising at least one male mold part and female mold part which are provided with form surfaces and recesses for guiding heated gas or steam and the like to the form surfaces and with devices for clamping on an apparatus, and whose form surfaces are shaped and formed from a sheet metal material, particularly perforated sheet metal, wherein in order to prevent any reworking at the form surface it is provided that a tap model, which is constructed as a negative form of the corresponding part of an original model, is used for shaping the sheet metal forming the form surface of a tool half, both the female mold and the male mold of the form tool, and that the perforated sheet metal forming the form surface remains fixed on the tap model until the frame and the possibly necessary reinforcements are connected to its rear side, which is open at the top.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: September 28, 1993
    Assignee: Karrosseriewerke Weinsberg GmbH
    Inventors: Kurt Karl, Armin Doering, Erich Lohner