Patents by Inventor Wolfgang Eberhard Luxem

Wolfgang Eberhard Luxem 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).

  • Patent number: 7084418
    Abstract: Recognizing a substrate stock by light-sensitive sensors inside a printing unit, by a sensor that can recognize several ranges of light wavelengths. By separate recognition of various ranges of light wavelengths, a substrate stock is recognized whenever the total reflection capabilities of surface and substrate stock determined across all light wavelengths coincide.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: August 1, 2006
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Wolfgang Eberhard Luxem, Eggert Joachim Jung, Thomas Zelenka
  • Patent number: 7032519
    Abstract: Controlling a sensor mechanism for a printing machine, in which the sensor mechanism in a printing machine detects, in an initial operational mode, at least one mark and the detection of the mark initiates a second operational mode in which the optical density and the color of the mark are detected by the sensor mechanism.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 25, 2006
    Assignee: Eastman Kodak Company
    Inventors: Wolfgang Eberhard Luxem, Ralph Petersen
  • Patent number: 6969207
    Abstract: Recognizing a print substrate in the vicinity of a sensor within a printing machine, whereby a change in the capacitance of the system formed by the sensor and a surface of an area in which a print substrate should be recognized, is recognized by the sensor. In this way, print substrates can already be identified on the basis of a dielectric constant that is different from that of air.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: November 29, 2005
    Assignee: Eastman Kodak Company
    Inventors: Dirk Kahl, Wolfgang Eberhard Luxem, Karlheinz Walter Peter, Sönke Schmidt
  • Patent number: 6950615
    Abstract: To regulate the gloss on a print material, and avoid excess release oil, the properties of the fusing medium are measured, and the gloss on the print material is determined on the basis of the measured properties of the fusing medium.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: September 27, 2005
    Assignee: Eastman Kodak Company
    Inventors: Eggert Joachim Jung, Wolfgang Eberhard Luxem, Holger Runkowske, Johann Weigert, Thomas Zelenka
  • Patent number: 6889028
    Abstract: Controlling the position accuracy in color printing with an electrophotographic printing device in regard to the register, namely the position accuracy of a printed image on the print substrate, in particular on the printed sheet regarding an edge of the printed sheet and in regard to the gage-pin, namely the position accuracy of the color printouts of the color print in relation to each other. Register and gage-pin position accuracy are executed with one and the same sensor unit, having one light receiver (sensor), which receives light from at least one light emitter. In this way, both of the position accuracy can be checked economically while saving space and in extreme cases, be corrected, preferably using a control fitting.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: May 3, 2005
    Assignee: Eastman Kodak Company
    Inventors: Heiko Hunold, Wolfgang Eberhard Luxem
  • Publication number: 20040227110
    Abstract: Detecting an object, where a light source and an optical receiver are used, and the object is detected by having it intersect the ray of light between the light source and the optical receiver. The optical receiver includes, at least, a fluorescing device.
    Type: Application
    Filed: March 8, 2004
    Publication date: November 18, 2004
    Inventors: Wolfgang Eberhard Luxem, Thomas Zelenka
  • Publication number: 20040226466
    Abstract: Recognizing a print substrate in the vicinity of a sensor within a printing machine, whereby a change in the capacitance of the system formed by the sensor and a surface of an area in which a print substrate should be recognized, is recognized by the sensor. In this way, print substrates can already be identified on the basis of a dielectric constant that is different from that of air.
    Type: Application
    Filed: August 6, 2003
    Publication date: November 18, 2004
    Inventors: Dirk Kahl, Wolfgang Eberhard Luxem, Karlheinz Walter Peter, Sonke Schmidt
  • Publication number: 20040222362
    Abstract: Detecting various colors on a surface, whereby a varying distance between a sensor device and the surface is detected, and the sensor device's signals are functionally linked to the varying distance. Measurement of the surface using the sensor device serves the purpose of both detecting the color and detecting the distance between the sensor device and the surface. The color value of the surface is determined depending on the distance of the surface from the sensor device.
    Type: Application
    Filed: April 12, 2004
    Publication date: November 11, 2004
    Inventors: Thomas Zelenka, Wolfgang Eberhard Luxem, Marion Gabriele Behrens
  • Publication number: 20040109160
    Abstract: A process for recognizing a colorless or color-reduced register mark by recording reflected or remitted electromagnetic radiation, particularly of visible or invisible light such that the register mark can be more reliably identified with particularity. The register mark is given an environment contrasting with the register mark, preferably installed beneath it, that absorbs an amount of radiation different from the amount the register mark itself and/or an absorptive ground absorbs.
    Type: Application
    Filed: September 17, 2003
    Publication date: June 10, 2004
    Inventors: Wolfgang Eberhard Luxem, Rodney R. Bucks, Klaus Muller
  • Publication number: 20040079146
    Abstract: Determining the thickness of the liquid layer on a rough, poorly reflecting surface with a radiation source transmitting a beam to the surface with the liquid layer, a radiation detector that receives the beam reflected from the surface and liquid layer, and the thickness of the liquid layer on the surface being determined on the basis of a measurement of the degree of gloss and/or a diffused light measurement by the beam received.
    Type: Application
    Filed: February 7, 2003
    Publication date: April 29, 2004
    Inventor: Wolfgang Eberhard Luxem
  • Publication number: 20040065815
    Abstract: Recognizing a substrate stock by light-sensitive sensors inside a printing unit, by a sensor that can recognize several ranges of light wavelengths. By separate recognition of various ranges of light wavelengths, a substrate stock is recognized whenever the total reflection capabilities of surface and substrate stock determined across all light wavelengths coincide.
    Type: Application
    Filed: August 6, 2003
    Publication date: April 8, 2004
    Inventors: Wolfgang Eberhard Luxem, Eggert Joachim Jung, Thomas Zelenka
  • Patent number: 6684049
    Abstract: A procedure and device for measuring the thickness of a liquid layer, in particular an oil layer, on the rollers of printing presses. The mass of the liquid layer in the printing press is measured by a measuring device and that the thickness of the liquid layer on the roller be determined on the basis of the measured mass of the liquid layer. The measuring device preferably contains a piezoelectric sensor in a quartz microbalance, which picks up the frequency changes on the basis of the mass applied to the surface or on the basis of changes in the mass and converts them into corresponding masses or mass changes on the basis of the liquid layer. Furthermore, a control device is provided which controls the application of fluid on the roller as a function of the masses or mass changes determined.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: January 27, 2004
    Assignee: NexPress Solutions LLC
    Inventors: Wolfgang Eberhard Luxem, Holger Runkowske
  • Publication number: 20030103220
    Abstract: Monitoring and/or adjusting the forming of a printed color image by an image forming apparatus, preferably of a color image formed electrophotographically with toner. Light reflected or reflected back from a fixed toner image of a finished printed image is captured by a sensor device still within the image forming apparatus (online), the sensor device or its capturing result being used for controlling or adjusting the image forming process.
    Type: Application
    Filed: October 23, 2002
    Publication date: June 5, 2003
    Applicant: NexPress Solutions LLC
    Inventors: Wolfgang Eberhard Luxem, Eggert Joachim Jung, Thomas Zelenka
  • Publication number: 20030039799
    Abstract: A printing material is provided for control of a printing operation and for following the path of a printing material from manufacturing until recycling. The printing material is provided for a printing machine, whereby in the printing machine, data saved in the printing material is read and the read data is used in order to control the printing machine so that the settings of the printing machine are adapted to the printing material. The data is located in a thin elastic microchip, which is completely embedded in the printing material and does not impair the application of toner onto the surface of the printing material and the printing operation. The data of the microchip is read up to a distance of several meters in a non-contact manner.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 27, 2003
    Applicant: NextPress Solutions LLC
    Inventor: Wolfgang Eberhard Luxem
  • Publication number: 20030015673
    Abstract: Detecting a transparent object, in particular a web or conveyor belt of a printing press with at least one radiation source and at least one receiver arrangement for receiving rays from the radiation source, whereby the light intensity change based on the transparent object is independent of the position of the major optical axis h of the transparent object. A particular embodiment envisages two &lgr;/4 small plates, which are each attached to one of two linear polarization filters, which intersect one another.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 23, 2003
    Applicant: NexPress Solutions LLC
    Inventor: Wolfgang Eberhard Luxem
  • Publication number: 20020191184
    Abstract: A method and device for detecting a more opaque area or object in comparison with a translucent area or object, preferably for the detection of a stock or substrate on a transparent conveyor belt, by a light barrier. Reflection losses are preferably prevented, so that the light of the light barrier, which shines at least approximately under the Brewster (polarizing) angle on the translucent area or object, is used.
    Type: Application
    Filed: May 20, 2002
    Publication date: December 19, 2002
    Inventor: Wolfgang Eberhard Luxem
  • Publication number: 20020131058
    Abstract: To determine the thickness of a liquid layer, particularly that of an oil film, on a roller in a simple manner that saves time and that is cost-effective. To achieve this task, a procedure and a device are provided in which the thickness of the liquid layer is measured by a measuring device in the printing press. In addition, a delivery device for liquid is controlled on the basis of the measured thickness of the liquid layer.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 19, 2002
    Inventor: Wolfgang Eberhard Luxem
  • Publication number: 20020131797
    Abstract: A procedure and device for measuring the thickness of a liquid layer, in particular an oil layer, on the rollers of printing presses. The mass of the liquid layer in the printing press is measured by a measuring device and that the thickness of the liquid layer on the roller be determined on the basis of the measured mass of the liquid layer. The measuring device preferably contains a piezoelectric sensor in a quartz microbalance, which picks up the frequency changes on the basis of the mass applied to the surface or on the basis of changes in the mass and converts them into corresponding masses or mass changes on the basis of the liquid layer. Furthermore, a control device is provided which controls the application of fluid on the roller as a function of the masses or mass changes determined.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 19, 2002
    Inventors: Wolfgang Eberhard Luxem, Holger Runkowske