Patents by Inventor Jochen Drager

Jochen Drager 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).

  • Fluid friction clutch
    Patent number: 6935478
    Abstract: A fluid friction clutch, in particular for a motor vehicle fan, having a rotatably mounted shaft wherein a reservoir for at least largely holding the fluid is provided radially inside an outer periphery of the drive body, and wherein at least one first flow path and at least one second flow path are provided, which are used to connect the reservoir to the coupling area, and wherein the drive body, at the outer periphery, has at least one flow resistance element which is arranged between the at least first flow path and the at least second flow path, and wherein furthermore there is a controllable device for closing and opening at least one of these flow paths.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: August 30, 2005
    Assignee: BEHR GmbH & Co.
    Inventors: Jochen Dräger, Gerold Schultheiss, Rudolf Stoklossa
  • Fluid friction clutch
    Publication number: 20040168877
    Abstract: A fluid friction clutch, in particular for a motor vehicle fan, having a rotatably mounted shaft wherein a reservoir for at least largely holding the fluid is provided radially inside an outer periphery of the drive body, and wherein at least one first flow path and at least one second flow path are provided, which are used to connect the reservoir to the coupling area, and wherein the drive body, at the outer periphery, has at least one flow resistance element which is arranged between the at least first flow path and the at least second flow path, and wherein furthermore there is a controllable device for closing and opening at least one of these flow paths.
    Type: Application
    Filed: August 25, 2003
    Publication date: September 2, 2004
    Applicant: BEHR GmbH & CO.
    Inventors: Jochen Drager, Gerold Schultheiss, Rudolf Stoklossa