Patents by Inventor David L. Pinkston

David L. Pinkston 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).

  • Publication number: 20040256303
    Abstract: A fixed shower arm housing a filter media to remove contaminants, particulates and additives from the water flowing through the filtered shower arm and through an attached showerhead. The shower arm includes a housing attached to the outlet pipe and having a neck portion adapted to accommodate a hand-held or fixed showerhead. An adjustable escutcheon facilitates mounting of the housing to the outlet pipe while also creating an even flow into the housing and through the filter media. Water flows from the inlet pipe through the filter element to the shower neck.
    Type: Application
    Filed: December 22, 2003
    Publication date: December 23, 2004
    Inventors: Todd Talbot, Charles P. Mistovich, David L. Pinkston
  • Patent number: 4318194
    Abstract: A water closet flushing system of a type employing a float-controlled valve through which water is supplied to refill the tank after the water in the tank has been dumped into the bowl to flush the bowl. A diverter valve is interposed in the line leading from the ballcock valve through which the tank is refilled and is operable to divert this flow of water under line press to outlets or nozzles disposed around the upper rim of the bowl as soon as the flushing process begins to provide a complete pressurized washing of the bowl. After the tank empties, the diverter valve automatically shifts to a position which directs the water to refill the tank.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: March 9, 1982
    Assignee: Masco Corporation
    Inventor: David L. Pinkston
  • Patent number: D500837
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: January 11, 2005
    Assignee: Alsons Corporation
    Inventors: David L. Pinkston, Charles P. Mistovich