Patents by Inventor Dugald L. M. Morrison

Dugald L. M. Morrison 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).

  • Cooling makeup water intake cartridge filter for industry
    Patent number: 6959817
    Abstract: An industrial, e.g. power plant cooling, water extraction framed cartridge filter system is disclosed with a holed fabric type medium to filter debris from the power plant cooling water. The fabric type filter medium is comprised a one or more strength meshes of nylon or another strong fiber and an inner polypropylene or polyester medium with small holes. The size of the frame and the number and arrangement of the holes are arranged to supply a volume of filtered water consistent with the needs of the application at the typical pressures found therein. For a power plant, a system of many cartridges may be used to provide the total cooling/replacement water needs. Compressed air is introduced into the bottom interior of the cartridges and released via a valve at the top. The compressed air mechanically disturbs the filter medium to knock off any debris that may have attached to the filter medium surface and air escaping via the small holed in the filter may attach to and float small pieces of debris away.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: November 1, 2005
    Assignee: Orion Power Holdings
    Inventors: George T. Claypoole, Dugald L. M. Morrison
  • Cooling makeup water intake cartridge filter for industry
    Publication number: 20030010704
    Abstract: An industrial, e.g. power plant cooling, water extraction framed cartridge filter system is disclosed with a holed fabric type medium to filter debris from the power plant cooling water. The fabric type filter medium is comprised a one or more strength meshes of nylon or another strong fiber and an inner polypropylene or polyester medium with small holes. The size of the frame and the number and arrangement of the holes are arranged to supply a volume of filtered water consistent with the needs of the application at the typical pressures found therein. For a power plant, a system of many cartridges may be used to provide the total cooling/replacement water needs. Compressed air is introduced into the bottom interior of the cartridges and released via a valve at the top. The compressed air mechanically disturbs the filter medium to knock off any debris that may have attached to the filter medium surface and air escaping via the small holed in the filter may attach to and float small pieces of debris away.
    Type: Application
    Filed: May 22, 2002
    Publication date: January 16, 2003
    Inventors: George T. Claypoole, Dugald L.M. Morrison