Patents by Inventor William D. Dennis

William D. Dennis 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: 7051480
    Abstract: Disclosed is an apparatus for eliminating ice formation at roof edging comprising a mesh casing and salt-based fill material. The apparatus may be placed into a typical gutter assembly adjacent a roof edge. The casing is flexible and biodegradable and comprises a salt-retaining surface, a matter-engaging surface, and a plurality of mesh apertures. The mesh apertures each comprise a maximal aperture dimension. The fill material comprises a plurality of salt pellets, each pellet comprising a minimal pellet dimension. The minimal pellet dimension is greater in magnitude than the maximal aperture dimension and thus the fill material is retained by the salt-retaining surface. A portion of the fill material dissolves in water when water contacts the fill material thus forming a flowable solution. The solution inherently has a depressed freezing point for preventing ice formation. Thus, the water-based solution flowing from the apparatus functions to eliminate ice at roof edging.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: May 30, 2006
    Inventor: William D. Dennis