Patents by Inventor SANDRA KÖHLER

SANDRA KÖHLER 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: 11223246
    Abstract: A stator (300) for an electric machine, having a yoke ring (310), and a plurality of teeth (220) arranged side by side within the yoke ring (310) in the circumferential direction, wherein each tooth (220) has a yoke portion (222), wherein the yoke portions (222) of the teeth (220) support one another in the circumferential direction, wherein respectively at least a part of the outer circumference of the yoke portion (222) of each tooth (220) deviates from a circle segment shape that is concentric to a central axis (302) of the stator (300), and the outer circumference encloses at each point an angle of more than 45° with the radius (304) defined by the central axis (302).
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: January 11, 2022
    Assignee: Wittenstein SE
    Inventors: Ing. Ralf Kruse, Wolfgang Weigel, Ingolf Gröning, Armin Neubert, Sandra Köhler
  • Publication number: 20210057943
    Abstract: A stator (300) for an electric machine, having a yoke ring (310), and a plurality of teeth (220) arranged side by side within the yoke ring (310) in the circumferential direction, wherein each tooth (220) has a yoke portion (222), wherein the yoke portions (222) of the teeth (220) support one another in the circumferential direction, wherein respectively at least a part of the outer circumference of the yoke portion (222) of each tooth (220) deviates from a circle segment shape that is concentric to a central axis (302) of the stator (300), and the outer circumference encloses at each point an angle of more than 45° with the radius (304) defined by the central axis (302).
    Type: Application
    Filed: August 18, 2020
    Publication date: February 25, 2021
    Applicant: Wittenstein SE
    Inventors: Ing. Ralf Kruse, Wolfgang Weigel, Ingolf Gröning, Armin Neubert, Sandra Köhler
  • Publication number: 20130001475
    Abstract: A material composition is formed with a carrier component and an additive component. The additive component has one or more ceramic additives. The carrier component and the additive component are present in a ratio by volume in the range from approximately 1:9 to approximately 7:3, preferably in the range from approximately 1:4 to approximately 2:1. More particularly, they are present in a ratio of approximately 1:1. The material composition may be formed as a foil or as a liquid, viscous, paste or gel material. The material composition may be used, inter alia, as oxidation protection and as a sealing element.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicant: SGL CARBON SE
    Inventors: MARTIN CHRIST, SANDRA KÖHLER, FLORIAN GOJNY, RAINER SCHMITT, OSWIN ÖTTINGER