Patents by Inventor Ludger Hemmis

Ludger Hemmis 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: 5765905
    Abstract: A wind-deflecting covering for a convertible shields the rear region behind the front seats against drafts in the in-use position and, in the not-in-use position, can be brought into a position freeing the rear region. The covering can be transferred along two lateral, curved guideways from the essentially horizontal in-use position into a not-in-use position, located in the rear region behind the front seat and deposited there in a packed position.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: June 16, 1998
    Assignees: Wilhelm Karmann GmbH, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Ludger Hemmis, Udo Heselhaus
  • Patent number: 5558390
    Abstract: A rear-window pane of solid glass is insertable in the folding top cover of a convertible. The solid glass pane is provided with a plastic connecting element which is applied on the edge region of the solid glass pane and can be connected with the cover of the folding top by means of high frequency welding. With this arrangement, an additional reinforcing is no longer required and, accordingly, the advantages of a plastic window pane are combined with the longevity and stability of the glass material.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: September 24, 1996
    Assignee: Wilhelm Karmann GmbH
    Inventors: Ludger Hemmis, Matthias Overberg, Burkhard Schroder
  • Patent number: 5464265
    Abstract: A rear-window pane of solid glass is insertable in the folding top cover of a convertible. The solid glass pane is provided with a plastic connecting element which is applied on the edge region of the solid glass pane and can be connected with the cover of the folding top by high frequency welding. With this arrangement, an additional reinforcing is no longer required and, accordingly, the advantages of a plastic window pane are combined with the longevity and stability of the glass material.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: November 7, 1995
    Assignee: Wilhelm Karmann GmbH
    Inventors: Ludger Hemmis, Matthias Overberg, Burkhard Schroder
  • Patent number: 4809463
    Abstract: A window frame of rubber, or the like covering material, has two U-shaped sealing strips at opposite surfaces of the window. A respective U-shaped cross-section reinforcing strip insert is embedded in each of the sealing strips. A bridge joins the legs of the two sealing strips near the window. The sealing strips and the bridge include projecting fingers which engage the window surface. The bridge is removed from the bottom of the window cutout, and the bridge instead hangs down to define guides for the sides of the window as it moves down. Each reinforcing insert is a high tensile and compressive strength metal strip, but is also flexurally elastic and is smooth on the outside and is developed approximately U-shaped in cross-section. The window frame has ends which are butted and butt vulcanized, with the butt vulcanization place being free of the reinforcement insert.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: March 7, 1989
    Assignee: Gebr. Happich GmbH
    Inventors: Franz Schroder, Ludger Buller, Ludger Hemmis