Patents by Inventor Frans R. van den Toorn

Frans R. van den Toorn 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: 5224322
    Abstract: Wall construction, comprising a number of framework components, including uprights and horizontal beams, at a distance from each other, a number of wall components, including panels and casings, and coupling means composed of a number of couplings each designed for coupling a wall component to a framework component, a wall component coupled to a framework component having an essentially vertically running straight edge along which one or more couplings are fitted. A coupling comprises a guide means for the framework component, a sliding plate which is slidable vertically over or in the guide means, and a hook element fitted on a wall component with a lip extending essentially vertically, in such a way that after placing of the wall component against the framework component the sliding plate is slid by means of a pushing end of a tool from an uncoupled position in a vertical direction along the adjacent edge of the wall component to a coupled position over the lip.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: July 6, 1993
    Assignee: Maars Holding B.V.
    Inventor: Frans R. van den Toorn