Patents by Inventor Alexander Krecker

Alexander Krecker 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).

  • Separating device for removing solid particles from liquid and gas flows for high differential pressures
    Patent number: 10415351
    Abstract: The subject matter of the invention is a separating device for removing solid particles from liquids and/or gases in extraction wells, comprising a) an annular stack (7) of at least three brittle-hard annular discs (8), the upper side (9) of the annular discs (8) having at least three spacers (10), which are distributed uniformly over the circular circumference of the discs and the contact area (11) of which is planar, so that the spacers (10) have planiform contact with the underside of an adjacent annular disc (8), and the annular discs (8) being stacked and fixed in such a way that between the individual discs (8) there is in each case a separating gap (14) for the removal of solid particles, and the axial projection of the annular discs (8) at the inner and the outer circumference being circular, and the brittle-hard material of the annular discs (8) being chosen from oxidic and non-oxidic ceramic materials, mixed ceramics of these materials, ceramic materials with the addition of secondary phases, mixed
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: September 17, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Dietrich Lange, Christoph Lesniak, Alexander Krecker
  • SEPARATING DEVICE FOR REMOVING SOLID PARTICLES FROM LIQUID AND GAS FLOWS FOR HIGH DIFFERENTIAL PRESSURES
    Publication number: 20170254185
    Abstract: The subject matter of the invention is a separating device for removing solid particles from liquids and/or gases in extraction wells, comprising a) an annular stack (7) of at least three brittle-hard annular discs (8), the upper side (9) of the annular discs (8) having at least three spacers (10), which are distributed uniformly over the circular circumference of the discs and the contact area (11) of which is planar, so that the spacers (10) have planiform contact with the underside of an adjacent annular disc (8), and the annular discs (8) being stacked and fixed in such a way that between the individual discs (8) there is in each case a separating gap (14) for the removal of solid particles, and the axial projection of the annular discs (8) at the inner and the outer circumference being circular, and the brittle-hard material of the annular discs (8) being chosen from oxidic and non-oxidic ceramic materials, mixed ceramics of these materials, ceramic materials with the addition of secondary phases, mixed
    Type: Application
    Filed: July 27, 2015
    Publication date: September 7, 2017
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Dietrich Lange, Christoph Lesniak, Alexander Krecker