Patents by Inventor Dennis R. Heintz

Dennis R. Heintz 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: 4104840
    Abstract: Disclosed are novel building face panels, liner panels, wall panels and wall structures made from such panels. The wall panel is made from a face panel metal skin and a liner panel metal skin separated by an insulating core, such as of rigid polyurethane foam. The panels have novel male and female edges which facilitate assembling the panels into wall structures. Fasteners extend through the female edges of the wall panels securing the inner and outer metal skins to a supporting means such as girts thereby holding them together against negative pressure and fire.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: August 8, 1978
    Assignee: INRYCO, Inc.
    Inventors: Dennis R. Heintz, Arthur B. Thelen