Patents by Inventor David McDougall

David McDougall 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: 20210325088
    Abstract: A heat transfer device (100) includes an inner tube (102) mounted within a tubular chamber (104) of a heat exchanger (106). The hollow tubular chamber (104) has a closed end (108) with inwardly sloping inner surfaces (110) and the inner tube (102) has an open end (112) that terminates short of the closed end (108). A diffuser (114) is provided and is shaped such that an operatively front part (116) thereof substantially conforms to a shape of the inner surfaces (110) of the closed end (108) so as to form a narrow flow passageway (118) between the diffuser (114) and the inner surfaces (110) at the closed end (108), and an operatively back part (120) of the diffuser (114) slopes towards the inner tube (102) and away from its open end (112) to form a diffusion zone (122). Heat transfer assemblies utilising the heat transfer device (100) are also disclosed.
    Type: Application
    Filed: December 11, 2019
    Publication date: October 21, 2021
    Applicant: Stellenbosch University
    Inventors: Derwalt Johannes ERASMUS, Theodor Willem VON BACKSTRĂ–M, David MCDOUGALL, Matti LUBKOLL
  • Publication number: 20140196767
    Abstract: A photovoltaic module assembly is mounted on a frame of a racking system of a photovoltaic module installation site. The photovoltaic module assembly includes at least one photovoltaic module and at least one rash. The photovoltaic module includes a back sheet, at least one crystalline silicon photovoltaic cell supported on the back sheet, a first encapsulant layer formed from a silicone composition supported on the photovoltaic cell, and a cover sheet supported on the first encapsulant layer. The rail is fixed relative to the back sheet and is configured to support the one photovoltaic module on the racking system. Adhesive adheres the back sheet of the photovoltaic module to the rail. The adhesive is formed from a room-temperature vulcanizing silicone composition and has a thickness from the rail to the back sheet of between 2.3 mm and 6.0 mm.
    Type: Application
    Filed: June 1, 2012
    Publication date: July 17, 2014
    Applicant: DOW CORNING CORPORATION
    Inventors: Kevin Houle, Elizabeth Knazs, Brandy Knutson, David McDougall
  • Patent number: 8019840
    Abstract: A computerized method for determining whether a storage device detected in a SAN is associated with a storage array detected in the SAN, where the storage array has one or more storage devices associated therewith. The computerized method includes obtaining identifying information for the detected storage device, obtaining identifying information for the one or more storage devices associated with the detected storage array, and processing the obtained information to determine whether the detected storage device is one of the one or more storage devices associated with the detected storage array.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: September 13, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David McDougall, Harry E Kellogg, Paulene M. Purdy
  • Patent number: 7216184
    Abstract: The present invention is directed to a system and method which discovers or identifies a type of device associated with an input/output (I/O path). Preferred embodiments define a type of device by a property file. The property file is utilized to identify executable code that determines whether the device associated with a particular I/O path is the type of device defined by said property file.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: May 8, 2007
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Tom Milner, David McDougall
  • Publication number: 20040088366
    Abstract: A computerized method for determining whether a storage device detected in a SAN is associated with a storage array detected in the SAN, where the storage array has one or more storage devices associated therewith. The computerized method includes obtaining identifying information for the detected storage device, obtaining identifying information for the one or more storage devices associated with the detected storage array, and processing the obtained information to determine whether the detected storage device is one of the one or more storage devices associated with the detected storage array.
    Type: Application
    Filed: October 31, 2002
    Publication date: May 6, 2004
    Inventors: David McDougall, Harry E. Kellogg, Paulene M. Purdy
  • Publication number: 20020166002
    Abstract: The present invention is directed to a system and method which discovers or identifies a type of device associated with an input/output (I/O path). Preferred embodiments define a type of device by a property file. The property file is utilized to identify executable code that determines whether the device associated with a particular I/O path is the type of device defined by said property file.
    Type: Application
    Filed: May 1, 2001
    Publication date: November 7, 2002
    Inventors: Tom Milner, David McDougall
  • Patent number: D679244
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: April 2, 2013
    Assignee: Dow Corning Corporation
    Inventors: Tim Efthimiady, Kevin Houle, Elizabeth Knazs, David McDougall, Nicholas Singh, Heather Singler
  • Patent number: D679245
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: April 2, 2013
    Assignee: Dow Corning Corporation
    Inventors: Tim Efthimiady, Kevin Houle, Elizabeth Knazs, David McDougall, Nicholas Singh, Heather Singler
  • Patent number: D689816
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: September 17, 2013
    Inventors: Tim Efthimiady', Kevin Houle, Elizabeth Knazs, David McDougall, Nicholas Singh, Heather Singler