Patents by Inventor Dirk De Jong

Dirk De Jong 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: 5503446
    Abstract: A device for gripping and handling objects with a hole, such as compact discs, comprises a hollow carrier to be placed against the object at the hole, which carrier has an extremity directed toward the object which extremity is internally provided with at least two gripping fingers, which can be displaced relative to each other in radial direction of the hole to be engaged, in order to grip a peripheral edge of the hole with outwardly directed barbs at free extremities of the fingers and which can be displaced in axial direction to move the fingers out of the extremity of the carrier. The fingers are controlled by cooperating cams on both the carrier and fingers. These cams are fixedly connected to the carrier and the finger respectively and have such a shape that during the first part of displacement of the fingers from the extremity, the barbs define a first radius and during a second part of the displacement, the barbs define a second radius smaller than the first radius.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: April 2, 1996
    Inventor: Dirk De Jong