Patents by Inventor Roger A. Lichtenwald

Roger A. Lichtenwald 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: 4064670
    Abstract: A substantially rain-proof louver for mounting in an outside wall of an enclosure. The louver has a perimeter frame and plurality of blades extending across the frame, the blades being upwardly inclined from the outer edges to their inner edges. Each of the blades has a gutter element extending along its outer, lower edge. The gutter element is defined by the lowermost portion of the blade, a vertical flange and a downwardly and inwardly inclined anti-splash lip at the upper edge of the vertical flange, the anti-splash lip overlying, at least in part, the lowermost portion of the blade and extending toward the blade.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: December 27, 1977
    Assignee: American Warming and Ventilating Inc.
    Inventor: Roger A. Lichtenwald