Patents by Inventor Rolf Eberspacher

Rolf Eberspacher 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).

  • Container lid having an opening device
    Patent number: 4533063
    Abstract: A lid for a packaging container which include a tear-open part which is surrounded by a weakened line. The lid is molded of a composite material, which has an outer carrier layer of plastic, a middle barrier layer of metal foil and an inner heat-sealing layer of a thermoplastic synthetic material. The weakened line is produced as an indentation in the outer carrier layer by being heat-impressed using a heated tool.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: August 6, 1985
    Assignee: Robert Bosch GmbH
    Inventors: Norbert Buchner, Rolf Eberspacher, Dieter Liede