Patents by Inventor Erhard Dammann

Erhard Dammann 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).

  • Apparatus and method for determining the particle size and/or particle shape of a particle mixture
    Patent number: 7907279
    Abstract: An apparatus for determining the particle size and/or particle shape of a mixture of particles is provided, comprising a feeding device, which passes the mixture of particles through a zone of measurement as a particle flow; an illumination module, which generates illumination beams and illuminates the zone of measurement with them; a detection module comprising two cameras, each recording an area of the zone of measurement assigned to the respective camera, said cameras recording the areas with different magnifications, and comprising an evaluating module, which determines the particle size and/or particle shape on the basis of the recordings of the cameras, characterized in that the illumination module is provided such that it illuminates the two areas with different intensities.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: March 15, 2011
    Assignee: JENOPTIK Laser, Optik, Systeme GmbH
    Inventors: Ruediger Seifert, Ernst Gaertner, Frank Reichel, Erhard Dammann
  • APPARATUS AND METHOD FOR DETERMINING THE PARTICLE SIZE AND/OR PARTICLE SHAPE OF A PARTICLE MIXTURE
    Publication number: 20080231854
    Abstract: An apparatus for determining the particle size and/or particle shape of a mixture of particles is provided, comprising a feeding device, which passes the mixture of particles through a zone of measurement as a particle flow; an illumination module, which generates illumination beams and illuminates the zone of measurement with them; a detection module comprising two cameras, each recording an area of the zone of measurement assigned to the respective camera, said cameras recording the areas with different magnifications, and comprising an evaluating module, which determines the particle size and/or particle shape on the basis of the recordings of the cameras, characterized in that the illumination module is provided such that it illuminates the two areas with different intensities.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Applicant: JENOPTIK Laser, Optik, Systeme GmbH
    Inventors: Ruediger Seifert, Ernst Gaertner, Frank Reichel, Erhard Dammann