Patents by Inventor Dieter Ahrens

Dieter Ahrens 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: 8192674
    Abstract: The invention concerns an apparatus and a process for the production of a structure from fiber composite material, comprising a mold tool for receiving material which can be joined to provide a structure, and a vacuum system for molding and fixing the structure, wherein the vacuum system has a flexible layer, in particular a separation film or separation layer and/or a tear-off film, and a vacuum film for covering the structure. In accordance with the invention the vacuum system is free from ventilation material and/or tear-off material at least at a portion which corresponds to a portion of the structure to be covered, in which a step extends.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: June 5, 2012
    Assignee: Airbus Operations GmbH
    Inventors: Dieter Ahrens, Heinz Bardenhagen
  • Publication number: 20100035016
    Abstract: The invention concerns an apparatus and a process for the production of a structure from fiber composite material, comprising a mold tool for receiving material which can be joined to provide a structure, and a vacuum system for molding and fixing the structure, wherein the vacuum system has a flexible layer, in particular a separation film or separation layer and/or a tear-off film, and a vacuum film for covering the structure. In accordance with the invention the vacuum system is free from ventilation material and/or tear-off material at least at a portion which corresponds to a portion of the structure to be covered, in which a step extends.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 11, 2010
    Applicant: AIRBUS OPERATIONS GMBH
    Inventors: Dieter Ahrens, Heinz Bardenhagen
  • Patent number: 5000206
    Abstract: In a floodwater and a process for floodwashing workpieces wherein the workpiece is immersed in a bath of washing liquid and a workpiece surface is acted upon by at least one jet of washing liquid issuing from a nozzle, in order to achieve optimum cleaning efficiency of the jets with as low pumping capacity as possible, it is proposed that a free jet be used as jet and that the nozzle be guided at a distance from the workpiece surface which at most is approximately twice the length of the jet core of the free jet.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: March 19, 1991
    Assignee: Duerr GmbH
    Inventors: Carl Kramer, Karl-Eugen Metzger, Dieter Ahrens