Patents by Inventor Frieder Lutz

Frieder Lutz 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: 6446802
    Abstract: A container has an internal cavity for receiving knife blades lying side by side in a stack, the internal cavity being capable of being reduced in size by a slide member which is preferably displaceable in only one direction. In this way the blades are located in position however full the container is, and damage to the cutting edges by movement or slipping in the package is avoided. Furthermore a method is proposed by which first the blade which lies against the slide is extracted from the stack and then the slide member is urged against the stack of blades.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: September 10, 2002
    Assignee: Lutz Industria S.A.
    Inventors: Alexander Lutz, Frieder Lutz
  • Patent number: 4981212
    Abstract: There is disclosed a device for holding knife blades intended for sale, comprising a stiff sheet-like carrier on which there is mechanically mounted a dispenser which receives the blades and protects them from direct access, in such a way that the carrier has to be destroyed in order to open the dispenser and to free it from the carrier.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: January 1, 1991
    Assignee: Messrs. Lutz Kommanditgesellschaft Stahlwarenfabrik
    Inventors: Frieder Lutz, Alexander Lutz