Patents by Inventor Helmuth Ofterdinger

Helmuth Ofterdinger 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: 4751125
    Abstract: In a composite panel with a core plate (1), a cover plate (2) glued to the upper side of core plate (1), an edge strip glued to an edge (4) of the core plate (1) and a protective sheet (3) or the like glued to the underside of the core plate (1) in which a drip groove (7), running essentially parallel to the edge (4), is provided on the underside of core plate (1) at a certain distance from its edge (4), considerable production simplification and, simultaneously, a considerably improved protection from water drops running in on the underside of the composite panel are attained, by drip groove (7) being put directly into core plate (1), by the cover plate (2) being pulled around to the underside of core plate (1) and/or protective sheet (3) or the like glued to the underside being pulled into drip groove (7) as far as possible and by the area of the drip groove (7) that is not covered by the cover plate (2) and/or protective sheet (2) or the like, including the free edges of the cover plate (2) and/or the prot
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: June 14, 1988
    Assignee: Duropal-Werk Eberh. Wrede GmbH & Co. KG
    Inventor: Helmuth Ofterdinger