Patents by Inventor Frank Schwabe

Frank Schwabe 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: 5577469
    Abstract: A device connected to a valve stem for controlling a valve of an internal combustion engine. The device includes a cam having a first peripheral contour and a disk having a second peripheral contour smaller than the first peripheral contour. A first rocker arm is pivotable on an axle mounted bearing based on the second peripheral contour of the disk. A compensation device is positioned between the first rocker arm and the valve stem for maintaining contact therebetween. A second rocker arm is pivotable on the bearing based on the first peripheral contour of the cam. A drive selectively couples the second rocker arm to the valve stem. The drive includes a radially displaceable spherical driver disposed within the first rocker arm. A locking slide includes an engagement surface which radially displaces the spherical drive into a spherical depression on the second rocker arm so that the valve operates based on the first peripheral contour of the cam.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: November 26, 1996
    Assignee: IAV Motor GmbH
    Inventors: Leopold Muller, Frank Schwabe
  • Patent number: 5402756
    Abstract: An apparatus for controlling the engagement between a cam and a push rod in an internal combustion engine for affecting operation of a valve. The apparatus includes an outer tappet engaging the cam. A central tappet is connected to the push rod and supported within the outer tappet. A tappet coupling member is disposed between the outer tappet and the central tappet. A locking element is slidable between an unlocked position where the outer tappet moves freely with respect to the central tappet and a locked position, where the outer tappet is locked to the central tappet for moving the push rod to open the valve.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: April 4, 1995
    Assignee: LAV Motor GmbH
    Inventors: Joachim Bohme, Leopold Muller, Frank Schwabe