Patents by Inventor Heinrich Tiedeken

Heinrich Tiedeken 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).

  • Heat insulating composite section for window and door frames and similar items
    Patent number: 3956863
    Abstract: A heat insulating metal composite section for frames of windows, doors, facade panels etc., and a metal load bearing section and parallel to this a metal retaining section which are held together by one or more connecting pieces made of heat insulating, and somewhat springy plastic, the metal components exhibit undercut channels on their sides which face each other and in which projections of the connecting piece elastically engage and also, in which the projections of the connecting piece which engage on the load bearing section are pressed apart by a wedge which is drawn in by a screw which passes through the retaining section and the body of the connecting piece from outside.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: May 18, 1976
    Assignee: Swiss Aluminium Ltd.
    Inventor: Heinrich Tiedeken