Patents by Inventor Steffen Maertiens

Steffen Maertiens 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).

  • Publication number: 20150008619
    Abstract: The invention relates to a method and a device for producing a three-dimensional preform (19) from a laid scrim (1) in the course of the production of fiber-reinforced molded parts, comprising a draping device (3) and a transport device (21) for the laid scrim (1), the draping device (3) comprising at least one draping mold (18) for a laid scrim (3) and means for shaping the laid scrim (3) in accordance with the contour of the draping mold (18), the means being movable relative to the draping mold (18). The aim of the invention is to ensure an expeditious and yet high-quality shaping, especially of large-surface-area and/or complex geometries of a preform. At least a first and a second tray (7) are used in the method as the transport device (21), the first tray (7) releasing the laid scrim (3) for fixation by means of a fixing ram (4) and/or a draping ram (5) and the second tray (7) then placing the laid scrim (1) in the draping mold (18) by way of a movement originating from the draping device.
    Type: Application
    Filed: January 18, 2013
    Publication date: January 8, 2015
    Inventor: Steffen Maertiens
  • Publication number: 20150008617
    Abstract: The invention relates to a method and a device for producing a three-dimensional preform (19) from a fibre fabric (1) as part of production of fibre-reinforced formed components, comprising a draping device (3) and a transport device (21) for the fibre fabric (1), wherein said draping device (3) at least comprises a draping form (18) for a fibre fabric (3) and means, movable in relation to the draping form (18), for reshaping the fibre fabric (3) on the basis of the contour of the draping form (18). The problem addressed by the invention is that of ensuring swift yet high-quality reshaping, particularly of large-area and/or complex geometries of a preform. To solve the method problem, the invention states that the transport device (21) successively releases the fibre fabric (1) in the direction of the draping form (18) and the released regions of the fibre fabric (1) are fixed and/or draped on the draping form by means of a fixing stamp (4) and/or a draping stamp (5).
    Type: Application
    Filed: January 18, 2013
    Publication date: January 8, 2015
    Inventors: Matthias Graf, Tobias Fuerst, Steffen Maertiens