Patents by Inventor Karl-Heinz Graef

Karl-Heinz Graef 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: 9006589
    Abstract: A cable bushing, in particular for a motor vehicle, for routing a cable harness having a plurality of electrical lines through a wall opening in a sealed manner. The cable bushing includes a dimensionally stable housing for insertion into the wall opening. The housing encloses a sealing member that is made of an elastic sealing material. The sealing member includes receiving devices or channels for individually routing the electrical lines in an axial direction. The cable bushing further has a pressure-providing element that exerts a compressive force on the sealing member, such that the sealing member encloses the electrical lines individually in a sealed manner and the sealing member is pressed radially against the housing to achieve a high level of impermeability to longitudinal water penetration. Additionally, pins may be provided to produce additional radial compressive forces.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: April 14, 2015
    Assignee: Leoni-Bordnetz Systeme GmbH
    Inventors: Karl-Heinz Graef, Alexander Barnickel
  • Publication number: 20130292911
    Abstract: A cable bushing, in particular for a motor vehicle, for routing a cable harness having a plurality of electrical lines through a wall opening in a sealed manner. The cable bushing includes a dimensionally stable housing for insertion into the wall opening. The housing encloses a sealing member that is made of an elastic sealing material. The sealing member includes receiving devices or channels for individually routing the electrical lines in an axial direction. The cable bushing further has a pressure-providing element that exerts a compressive force on the sealing member, such that the sealing member encloses the electrical lines individually in a sealed manner and the sealing member is pressed radially against the housing to achieve a high level of impermeability to longitudinal water penetration. Additionally, pins may be provided to produce additional radial compressive forces.
    Type: Application
    Filed: August 24, 2011
    Publication date: November 7, 2013
    Applicant: LEONI BORDNETZ-SYSTEME GMBH
    Inventors: Karl-Heinz Graef, Alexander Barnickel