Patents by Inventor Gerhard Donges

Gerhard Donges 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: 6031890
    Abstract: A monitoring installation for containers and trucks is provided making detection of large items, particularly trucks, at minimal expense possible. An X-ray monitoring installation having low X-ray energy, permits detection of stolen passenger cars, is arranged on a monitoring path.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: February 29, 2000
    Assignee: Heimann Systems GmbH & Co. KG
    Inventors: Rainer Bermbach, Gerhard Donges, Georg Geus
  • Patent number: 4788704
    Abstract: An X-ray device for scanning objects moving on a conveyor path and for processing the detector signals acquired by the scan has a comparator for identifying faulty signals, the comparator being in a control chain for an image storage memory such that, in the event of a faulty detector signal, the contents of a memory row preceding the faulty detector signal are transferred into the memory row into which the faulty detector signal, if a correct signal, would have been stored. The system also includes a correction element for generating a reference signal at 100% radiation intensity in which the mean value of a number of measured signals is formed. The system also includes an element for reducing the amplitude of the useful signal during measurement in comparison to the amplitude allocated to a radiation intensity of 100%.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: November 29, 1988
    Assignee: Heimann GmbH
    Inventors: Gerhard Donges, Cornelius Koch
  • Patent number: 4759047
    Abstract: A baggage inspection system has a conveying path for moving articles to be inspected through an x-ray beam. The conveyor path is disposed between an x-ray source for generating the beam and a radiation detector. The radiation detector consists of a number of individual detectors, with the number of individual detectors per unit length being greater in a first region of the detector than in a second region thereof. The first region is disposed at the level of the conveying path for optimally displaying smaller articles transported by the conveyor path, while the second region is suited for display of larger articles.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: July 19, 1988
    Assignee: Heimann GmbH
    Inventors: Gerhard Donges, Rolf Dietrich
  • Patent number: 4748645
    Abstract: X-ray pictures of bodies are produced by a point X-ray source by providing measuring points in a linear detector array for the local intensity of the X-rays; their measured values control the brightness in picture elements of a monitor. All embodiments of the linear detector array deviating from a circular arc about the X-ray generator result in nonlinear distortion. The nonlinear distortions are compensated by a corresponding arrangement of the measuring points. The invention can be used for checking any object.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: May 31, 1988
    Inventors: Gerhard Donges, Cornelius Koch
  • Patent number: 4736401
    Abstract: An X-ray scanner for examining objects moved through an X-ray beam on a conveyor has a detector array disposed at the opposite side of the conveyor from the X-ray source and a pulse generator connected to the motor which drives the conveyor for generating a pulse trail dependent on the speed of the motor, and hence on the speed of the conveyor. The pulse generator is connected to a scanner for the detector array and controls the scan rate dependent upon the conveyor speed. The conveyor speed is controlled such that the quotient of the scan rate and the conveying speed is maintained constant in order to hold the imaging scale constant.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: April 5, 1988
    Assignee: Heimann GmbH
    Inventors: Gerhard Donges, Thomas Herwig, Cornelius Koch, Georg Geus
  • Patent number: 4566113
    Abstract: Method for examining the content of containers, which includes weighing the container, comparing the weight of the container with a total weight derived from the net weight of a given load and the product of the volume and the packing weight of the given load, transilluminating the container with a spatially limited high energy X-ray beam, moving the container relative to the X-ray, and determining and evaluating the distribution of the mass attenuation coefficient over at least one surface of the container, and an apparatus for carrying out the method.
    Type: Grant
    Filed: October 27, 1982
    Date of Patent: January 21, 1986
    Assignee: Heimann GmbH
    Inventors: Gerhard Donges, Thomas Herwig, Claus Kunze, Karl-Ulrich Stein