Patents by Inventor Robin Weightman

Robin Weightman 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).

  • METHODS, APPARATUS AND SYSTEMS FOR POLISHING WASTEWATER UTILIZING NATURAL MEDIA FILTRATION
    Publication number: 20070181511
    Abstract: Wastewater treatment systems, methods and apparatus for polishing a wastewater stream comprising a plurality of contaminants are provided. One system includes a vessel containing a plurality of natural media filtration agents selected to remove selected ones of the plurality of contaminants from the wastewater stream. In one embodiment, the vessel includes a bed of bauxite residue and at least one other natural media filtration agent. In another embodiment, the vessel includes a bed of compost and at least one other natural media filtration agent. The vessel includes a wastewater inlet that is in fluid communication with one or more of the natural media filtration agents. The vessel includes a wastewater outlet that is in fluid communication with one or more of the natural media filtration agents.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 9, 2007
    Applicant: Alcoa Inc.
    Inventors: John Smith, Jaw Fu, Rajat Ghosh, Kevin Kitzman, Jonell Kerkhoff, Robert Horger, Dennis Fulmer, Aniruddha Bhattacharyya, Andrew Middleton, Robin Weightman