Patents by Inventor Rolf Kiefer

Rolf Kiefer 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).

  • Supporting structure for sheet material
    Patent number: 6770845
    Abstract: This invention refers to a supporting structure (10) for sheet material as sheet metal material (100) cut out by a laser device (200) located above the sheet material and focused on the same, with means of movement between the laser device and the sheet material and/or supporting structure. The supporting structure substantially comprises vertically mounted parallel rows of identical narrow sheet strips (12), each having raised integrated support areas (22) for the sheet material (100) between recessed grooves (20). To increase the life time of the sheet strips and therefore the life of the supporting structure, and at the same time to prevent damage to the underside of the sheet material as sheet metal, needles (24) are set onto the integrated support areas (22) of the sheet strips (12), the free ends of which form points of support (26) for the sheet material (100) laid upon them.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 3, 2004
    Inventors: Nöst Franz, Döhring Frank, Richard Bohnert, Konrad Straub, Rolf Kiefer, Karl-Martin Benz, Horst Ambruster, Stefan Kolb
  • SUPPORTING STRUCTURE FOR SHEET MATERIAL
    Publication number: 20040144762
    Abstract: This invention refers to a supporting structure (10) for sheet material as sheet metal material (100) cut out by a laser device (200) located above the sheet material and focused on the same, with means of movement between the laser device and the sheet material and/or supporting structure. The supporting structure substantially comprises vertically mounted parallel rows of identical narrow sheet strips (12), each having raised integrated support areas (22) for the sheet material (100) between recessed grooves (20).
    Type: Application
    Filed: January 29, 2003
    Publication date: July 29, 2004
    Inventors: Nost Franz, Dohring Frank, Richard Bohnert, Konrad Straub, Rolf Kiefer, Karl-Martin Benz, Horst Ambruster, Stefan Kolb