Patents by Inventor Sebastian Dittrich

Sebastian Dittrich 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: 20210319377
    Abstract: The subject matter of the present application relates to a test method for determining the risk potential of an alkali-silica reaction in mineral construction materials such as concrete. The test method may be characterized by the steps of: a) examining (220) a sample (12) by means of Raman spectroscopy for providing a structural characterization (230) of the sample (12), b) comparing (240) the examination result to values (250) stored in a database, and c) using (260) the result of the comparison (240) for ascertaining (270) a risk potential for the concrete for an alkali-silica reaction.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
  • Publication number: 20210069724
    Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.
    Type: Application
    Filed: October 28, 2020
    Publication date: March 11, 2021
    Inventors: Robert Stark, Volker Thome, Severin Seifert, Sebastian Dittrich, Christian Bickes, Juergen Urban
  • Patent number: 4413446
    Abstract: An improved threshold assembly for mounting on a door and a door sill is described which includes a sill-mounted portion with a threshold plate formed of nonmagnetically attracted material and a door-mounted portion with a door cap for mounting on the bottom edge of the door with a flexible magnet-holding device. Two elongated magnets are mounted one in each portion of the threshold assembly, and, when the door is in the closed position, the magnets are positioned one on top of the other. The magnets are structured so that the opposite edges have opposite polarity and are mounted with adjacent magnet edges having unlike polarity. During closing of the door, the edges of like polarity approach and repel one another and causes the magnet-holding device to move away from the threshold plate.
    Type: Grant
    Filed: August 19, 1981
    Date of Patent: November 8, 1983
    Assignee: Magnetic Weather Stripping Corp.
    Inventor: Sebastian Dittrich
  • Patent number: 4300314
    Abstract: A threshold assembly for mounting on a door and a door sill is described which includes a threshold plate assembly formed of nonmagnetically attracted material and a door cap assembly for mounting on the bottom edge of the door. The threshold plate assembly has a first stepped portion with a substantially vertical face extending medially along the bottom edge of the door. This first stepped portion comprises: a riser portion and a stair portion extending from the lower edge of the riser portion inwardly toward and beyond the interior surface of a door. Second stepped portion on the bottom edge of a door includes the lowermost portion corresponding to stair portion of the first stepped portion and the uppermost portion corresponding to a saddle portion. A magnet mounting device for attachment to the lowermost portion of a second stepped portion includes: a slot extending substantially vertically adjacent the lowermost portion and a guard plate extending substantially horizontally adjacent the stair portion.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: November 17, 1981
    Assignee: Magnetic Weather Stripping Corp.
    Inventor: Sebastian Dittrich