Patents by Inventor Heinrich Flegel

Heinrich Flegel 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).

  • Adhesive system for form reversible glued joints
    Patent number: 6764569
    Abstract: An adhesive system for forming reversible adhesive bonds includes at least one polymeric adhesive component comprising at least one of polyurethanes, polyureas, or epoxy resins and at least one additional component that includes a functional group that can be activated by the introduction of energy, such that a chemical reaction with the adhesive component takes place involving a partial breakdown of the adhesive component. Reversible bonding of articles and controlled parting of an adhesive bond between articles can be achieved with the adhesive system.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: July 20, 2004
    Assignees: DaimlerChrysler AG, Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V., Henkel KgaA
    Inventors: Peter Becher, Heinrich Flegel, Michael Herrmann, Peter Kurzmann, Jörg Bauer, Monika Bauer, Hartmut Krüger, Jens Neumann-Rodekrich, Jürgen Schneider, Michael Hirthhammer
  • Flat structural member, particularly a cast metal part or a cast plastic part and a method for making the same
    Patent number: 6327827
    Abstract: A flat cast structural member, particularly a cast metal part or a cast plastic part wherein the surface of the structural member is covered by a thin metal sheet or a plastic layer. An adhesive or coupling layer is provided between the thin metal sheet or plastic layer, whereby under the influence of heat, the adhesive or coupling layer absorbs any surface unevenness or irregularities on the structural member.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: December 11, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Heinrich Flegel, Wolfgang Fussnegger, Martin Klamser, Stefan Lotz, Bruno Moeltgen, Volker Thoms