Patents by Inventor Daniel Martin McGrath

Daniel Martin McGrath 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).

  • Apparatus for treating a gas stream
    Patent number: 9371581
    Abstract: In an apparatus for treating a gas stream, a plasma generator comprises an electrode for energizing a source gas to generate a plasma flare by application of a high voltage. An inlet allows the gas stream into the apparatus and directs it into the generated plasma. A scraper is fitted for reciprocating movement from a first position to a second position for scraping a surface to remove solid deposits accumulated on the surface.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: June 21, 2016
    Assignee: Edwards Limited
    Inventors: Christopher James Philip Clements, Sergey Alexandrovich Voronin, John Leslie Bidder, Joanne Walsh, Daniel Martin McGrath
  • Plasma torch
    Patent number: 9277636
    Abstract: To lengthen the service period on DC plasma abatement devices a modified DC plasma torch is provided with an electrically conductive cathode and an electrically conductive anode spaced apart from one another to form a gap therebetween; a metal swirl bush at least partially located within the gap and comprising a channel adapted to permit, in use, a gas to flow through the gap; and a ceramic element interposed between any one or more of: the cathode and the swirl bush; and the anode and the swirl bush.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 1, 2016
    Assignee: Edwards Limited
    Inventors: Sergey Alexandrovich Voronin, Christopher James Philip Clements, Daniel Martin McGrath, Fraser Gray, Andrew James Seeley
  • Plasma Torch
    Publication number: 20140027411
    Abstract: To lengthen the service period on DC plasma abatement devices a modified DC plasma torch is provided with an electrically conductive cathode and an electrically conductive anode spaced apart from one another to form a gap therebetween; a metal swirl bush at least partially located within the gap and comprising a channel adapted to permit, in use, a gas to flow through the gap; and a ceramic element interposed between any one or more of: the cathode and the swirl bush; and the anode and the swirl bush.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 30, 2014
    Applicant: Edwards Limited
    Inventors: Sergey Alexandrovich Voronin, Christopher James Philip Clements, Daniel Martin McGrath, Fraser Gray, Andrew James Seeley