Patents by Inventor Hans-Jurgen Luckow

Hans-Jurgen Luckow 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: 5938020
    Abstract: The cassette is used for the storage of compact disks and it includes a lower shell and an upper shell, which is pivotably connected to the lower shell. At least one release button, in a starting position, holds the upper shell in a fixed location relative to the lower shell. In a release position, the release button allows the pivoting of the upper shell relative to the lower shell. After pivoting the upper shell upwardly relative to the lower shell, the compact disk is released without any significant clamping force being applied. When the upper shell is pivoted upwardly relative to the lower shell, the compact disk is released essentially without the application of a clamping force. When the upper shell is pivoted upwardly relative to the lower shell the compact disk is essentially free of overlap in a central opening with respect to the lower shell.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: August 17, 1999
    Inventor: Hans-Jurgen Luckow
  • Patent number: 5746315
    Abstract: The holding device has the purpose of holding compact discs in position within a receiving container. The receiving container includes at least one upper shell and at least one lower shell. The holding device is equipped with clamping elements for retaining the compact discs in the area of a central opening. The clamping elements are extended, essentially vertically, to a support surface for the compact discs. Beyond this, the clamping elements are disposed along a circumference of a central opening of the support surface. Originating from a center of the holding device, a central opening is disposed in a radial direction behind at least one of the clamping elements. The opening extends in a circumferential direction along at least a portion of a rearward boundary of the clamping element. The clamping element contains at least one positioning projection, which forms a collar over at least a portion of the opening.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: May 5, 1998
    Inventor: Hans-Jurgen Luckow
  • Patent number: 5522501
    Abstract: The invention concerns a case for storing compact discs. In accordance with the invention, this case is constructed in such a way that the interior part in the area of the clamping slots is provided with a profile closure strip in such a manner that the interior ridges separating the clamping slots from each other protrude farther into a direction away from the interior part than the outer ridges limiting the clamping slots at the outside.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 4, 1996
    Inventor: Hans-Jurgen Luckow
  • Patent number: 5450951
    Abstract: The invention concerns a case for storing compact discs. In accordance with the invention, this case is constructed in such a way that the interior part in the area of the clamping slots is provided with a profile closure strip in such a manner that the interior ridges separating the clamping slots from each other protrude farther into a direction away from the interior part than the outer ridges limiting the clamping slots at the outside.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: September 19, 1995
    Inventor: Hans-Jurgen Luckow