Patents by Inventor Manfred Ell

Manfred Ell 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).

  • Packaging for articles, in particular those having a right parallelepiped shape
    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