Patents by Inventor RALF NIGGEMANN

RALF NIGGEMANN 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).

  • Cleaning of press plates or endless press belts
    Patent number: 9862009
    Abstract: The invention relates to a method for cleaning a structured surface (1) of a press tool (2), in particular a press plate or an endless press belt, the contaminations on the surface being burnt away by at least one laser beam and combustion residues being subsequently removed from the surface by means of an air or gas stream.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: January 9, 2018
    Assignee: HUECK Rheinische GmbH
    Inventor: Ralf Niggemann
  • CLEANING OF PRESS PLATES OR ENDLESS PRESS BELTS
    Publication number: 20160318075
    Abstract: The invention relates to a method for cleaning a structured surface (1) of a press tool (2), in particular a press plate or an endless press belt, the contaminations on the surface being burnt away by at least one laser beam and combustion residues being subsequently removed from the surface by means of an air or gas stream.
    Type: Application
    Filed: October 28, 2014
    Publication date: November 3, 2016
    Inventor: Ralf Niggemann
  • METHOD FOR PRODUCING GLOSS EFFECTS ON PRESSING TOOLS
    Publication number: 20150183056
    Abstract: A method for adjusting the gloss level of a structured surface of a pressing tool, for example, a pressing sheet or pressing belt, is provided. An energetic beam, in particular a laser beam, is used to remelt at least part of the surface to a depth of 1 to 5 ?m, more particularly from 1 to 3 ?m. A method is thus produced that is substantially quicker and cheaper with respect to conventional polishing methods for pressing plates and which can be used to change the gloss level of the tool surface that is independent of the surface structure.
    Type: Application
    Filed: August 23, 2013
    Publication date: July 2, 2015
    Inventor: Ralf Niggemann
  • Printing form
    Patent number: 8925457
    Abstract: A printing form includes a bonding layer, an intermediate layer and a top layer. The top layer includes silicon nitride.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: January 6, 2015
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Harald Latzel, Ralf Niggemann
  • METHOD FOR PRODUCING ETCHABLE STRUCTURES USING A LASER HAVING A WAVELENGTH IN THE INFRARED RANGE
    Publication number: 20150001179
    Abstract: The invention relates to a method for producing etch-resistant structures (masks) on the surfaces of metallic pressing tools, specifically continuous press bands or press plates, by means of a laser, wherein a surface of the press tool to be structured is provided with a thermally sensitive, etch-resistant coating and the laser burns structures out of the etch-resistant coating. In order to prevent negative influences when lasering on the surface of the press plate, the invention proposes that the structure is burned with a laser that emits light having a wavelength in the infrared range between 780 nm and 1 mm.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 1, 2015
    Inventors: Ralf Niggemann, Heiko Peuster
  • PRINTING FORM
    Publication number: 20130036926
    Abstract: A printing form includes a bonding layer, an intermediate layer and a top layer. The top layer includes silicon nitride.
    Type: Application
    Filed: August 13, 2012
    Publication date: February 14, 2013
    Applicant: HEIDELBERGER DRUCKMASCHINEN AG
    Inventors: HARALD LATZEL, RALF NIGGEMANN