Patents by Inventor William Aaron

William Aaron 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).

  • Residential drain line stop valve
    Patent number: 6311721
    Abstract: A resilient, deformable sewage back flow stop plug is disclosed that may be comformably compressed within a junction between a structure sewage effluent line and a sewer main. The plug is sized such that, when compressed, it deforms and conformably seals all access conduits to the structure sewage effluent line/sewer main junction. The plug may be deformed around any debris and/or sewage deposits located within the junction, conforming to fill and seal all access conduits and preventing the back flow of sewage into the structure.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: November 6, 2001
    Inventor: William Aaron