Patents by Inventor Andreas Grafe

Andreas Grafe 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).

  • Device for single-grain sowing
    Patent number: 10638654
    Abstract: A single-grain sowing device comprising: a drum rotatable about an axis of rotation, a cavity formed in the drum, wherein an end face of the cavity is delimited by a sowing disc, in which multiple sowing holes are arranged on a notional circular path at a distance to each other, a body arranged in the cavity, rotatable about an axis arranged at a distance and parallel to the axis of rotation, with one part of the surface thereof resting against the sowing disc such that, when the sowing disc rotates, same temporarily seals a respective passed sowing hole on the inside, wherein the body can be rolled out on an outer casing surface surrounding the cavity, and a pressure spring, wherein the pressure spring presses the body against the casing surface.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 5, 2020
    Assignee: Kverneland AS
    Inventors: Michael Winkelmann, Andreas Grafe
  • DEVICE FOR SINGLE-GRAIN SOWING
    Publication number: 20180279544
    Abstract: A single-grain sowing device comprising: a drum rotatable about an axis of rotation, a cavity formed in the drum, wherein an end face of the cavity is delimited by a sowing disc, in which multiple sowing holes are arranged on a notional circular path at a distance to each other, a body arranged in the cavity, rotatable about an axis arranged at a distance and parallel to the axis of rotation, with one part of the surface thereof resting against the sowing disc such that, when the sowing disc rotates, same temporarily seals a respective passed sowing hole on the inside, wherein the body can be rolled out on an outer casing surface surrounding the cavity, and a pressure spring, wherein the pressure spring presses the body against the casing surface.
    Type: Application
    Filed: September 28, 2016
    Publication date: October 4, 2018
    Applicant: Kverneland AS
    Inventors: Michael Winkelmann, Andreas Grafe
  • Process for removing metal halides from liquid organic water-immiscible substances
    Patent number: 4885418
    Abstract: According to the invention, metal halides are removed from liquid organic water-immiscible substances by treating the liquid organic water-immiscible substances which contain the metal halides with a water-containing anion-exchanger in the OH form.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: December 5, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Sigurd Hartung, deceased, by Birgit Hartung-Merse, heir, Uwe Beck, Ulrich Kappler, Alfred Mitschker, Andreas Grafe