Patents by Inventor Stephan Riechert

Stephan Riechert 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).

  • Method for mounting cylindrically-shaped printing forms
    Patent number: 7819060
    Abstract: The invention provides a method and apparatus for mounting two or more cylindrically-shaped printing forms onto a cylindrically-shaped base. The base can be a print cylinder or an adapter mounted onto a print cylinder. The method and apparatus provide for positioning the two or more printing forms in register on the base. The two or more printing forms are axially oriented on the base using pressurized air as an air cushion between the base and the printing forms, positioned in a registration position, and engaged by a holding member to maintain the two or more printing forms in their respective registration position.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: October 26, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Bradley K. Taylor, Stephan Riechert, Thies Knudsen
  • Method for mounting cylindrically-shaped printing forms
    Publication number: 20080250960
    Abstract: The invention provides a method and apparatus for mounting two or more cylindrically-shaped printing forms onto a cylindrically-shaped base. The base can be a print cylinder or an adapter mounted onto a print cylinder. The method and apparatus provide for positioning the two or more printing forms in register on the base. The two or more printing forms are axially oriented on the base using pressurized air as an air cushion between the base and the printing forms, positioned in a registration position, and engaged by a holding member to maintain the two or more printing forms in their respective registration position.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 16, 2008
    Inventors: Bradley K. Taylor, Stephan Riechert, Thies Knudsen
  • Method of making a photopolymer sleeve blank having an integral UV transparent cushion layer for flexographic printing
    Publication number: 20050277062
    Abstract: A method of making a photopolymer sleeve blank for use in flexographic printing is provided which includes providing a base sleeve, applying a cushion layer over the base sleeve which is substantially transparent to curing radiation, applying an optional barrier layer over the cushion layer, and applying a photopolymer layer over the barrier or cushion layer. The inner surface of the base sleeve is then exposed to curing radiation such that the radiation penetrates the sleeve and cushion layer to substantially cure a portion of the thickness of the photopolymer layer.
    Type: Application
    Filed: May 6, 2005
    Publication date: December 15, 2005
    Inventors: Michael McLean, Dieter Schulze-Baing, Michael Kockentiedt, Stephan Riechert, Mario Busshoff, Thies Knudsen
  • Method for mounting multiple printing elements onto a cylindrical element
    Patent number: 6117615
    Abstract: A method provides for mounting at least one photosensitive printing element onto a cylindrical element containing a previously mounted first photosensitive printing element without contacting an outermost surface of the first photosensitive printing element.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: September 12, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephan Riechert, Sascha Nau