Patents by Inventor Hans-Dieter Erhardt

Hans-Dieter Erhardt 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: 5657870
    Abstract: A pack for stacked articles with at least an identical base area, for example rectangular or square, comprises two adhesive strips which do not have lines of weakness or tearing lines and are provided at least on the narrow sides of the stack. The material is recyclable and corresponds as far as possible to the other packaging material. A gripping aid facilitates the largely non-destructive pulling off of the adhesive strips for individually separating the articles. The pack can be used for all rectangularly shaped articles such as cuboids, cubes, disks etc.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: August 19, 1997
    Assignee: BASF Magnetics GmbH
    Inventors: Klaus Schottle, Heinrich Wollensack, Gerald-Wolfgang Borck, Hans Dieter Erhardt
  • Patent number: 5011014
    Abstract: Film packaging for right parallelepiped articles, in which the film parts are welded by heat sealing, is provided with a tear aid in the form of an additional, advantageously arranged imprint which prevents heat sealing in one or more desired areas. The reliability of film removal is additionally increased by means of a plurality of oblique prints and imprint areas one covering the other. The packaging can be used for articles of all types where complete removal of all packaging parts is necessary, for example for tape cassettes, in particular for magnetic tape cassettes.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: April 30, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerald-Wolfgang Borck, Manfred Ell, Hans-Dieter Erhardt