Patents by Inventor Paul Po-Cheng Su

Paul Po-Cheng Su 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).

  • Combined plug and sealing ring for sprinkler nozzle and related methods
    Patent number: 8607886
    Abstract: A combined plug and sealing ring for a sprinkler nozzle includes a nozzle plug having a substantially cylindrical portion adapted to engage within a nozzle orifice of a sprinkler nozzle, and a cap overlaying the substantially cylindrical portion. A sealing ring is adapted to seat onto a threaded pipe fitting portion of the sprinkler nozzle. A leash interconnects the nozzle plug and the sealing ring. A combined plug and sealing ring in combination with a sprinkler nozzle, and a method of installing a sprinkler nozzle in a highly corrosive or extremely corrosive environment are also disclosed.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: December 17, 2013
    Assignee: FM Global Technologies, LLC
    Inventors: John Harrington, Paul Po-Cheng Su, David Fuller