Patents by Inventor Steven R. DeMello

Steven R. DeMello 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: 4909667
    Abstract: A method and apparatus for applying a "daily cover" to the working face of a landfill. A sheet-like member preferably of imperforate construction such as canvas and the like is positioned at the end of a working day at one edge of the working face such that one edge of the member is adjacent thereto. The member is then fixed to the landfill and then unrolled to its extended position to cover at least a significant portion of the working face and thus obviate the need for a conventional "daily cover" in the form of six inches to two feet of compacted earth.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: March 20, 1990
    Inventor: Steven R. DeMello