Patents by Inventor Johann Erdt

Johann Erdt 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: 20150151533
    Abstract: A method and a device for slitting a substrate web in a printing press by a slitting device are disclosed. The method and device includes a number of cutting knives, which are displaceably arranged transversely to the web running direction, and are able to react as quickly and exactly as possible to changes of the substrate web. To this end, printing parameters of the substrate web are measured and at least one of the cutting knives is transferred into a target position, where the target position is determined based on the measured printing parameters.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 4, 2015
    Applicant: manroland web systems GmbH
    Inventors: Johann ERDT, Siegmund Echerer
  • Patent number: 7220223
    Abstract: A printing press having an apparatus for determining the product thickness of a folded product which is fed to folding rolls for making a fold known as the third fold. The apparatus has measuring heads that are arranged on both sides of a folding roll bearing levers. For the purpose of presetting, the product to be folded is introduced slowly between folding rolls. The position of the folding rolls is determined, and a setting signal is generated therefrom and supplied to an actuating motor via a machine presetting means. The actuating motor sets the position of the folding roll levers, such that the folding rolls can be set relative to one another with regard to their mutual spacing, in accordance with the thickness of the folded product.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: May 22, 2007
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Johann Erdt, Theo Keilhau
  • Publication number: 20050209078
    Abstract: A printing press having an apparatus for determining the product thickness of a folded product which is fed to folding rolls for making a fold known as the third fold. The apparatus has measuring heads that are arranged on both sides of a folding roll bearing levers. For the purpose of presetting, the product to be folded is introduced slowly between folding rolls. The position of the folding rolls is determined, and a setting signal is generated therefrom and supplied to an actuating motor via a machine presetting means. The actuating motor sets the position of the folding roll levers, such that the folding rolls can be set relative to one another with regard to their mutual spacing, in accordance with the thickness of the folded product.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 22, 2005
    Applicant: MAN Roland Druckmaschinen AG
    Inventors: Johann Erdt, Theo Keilhau