Patents by Inventor Russell Lambert Watkins

Russell Lambert Watkins 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).

  • Beam
    Patent number: 8181423
    Abstract: A hollow flange channel beam has a planar web with a pair of narrow rectangular cross-section flanges extending along opposite sides of said web and extending perpendicular to a face of said web in the same direction. The section capacity is optimized when Wf=(0.3)Db, Wf=(3.0)Df and WF=(30)t.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: May 22, 2012
    Assignee: Smorgon Steel Litesteel Products Pty Ltd.
    Inventors: Ross John Bartlett, Ross Ian Dempsey, Russell Lambert Watkins, Alexander Noller, Keiji Yokoyama
  • BEAM
    Publication number: 20110162320
    Abstract: A hollow flange channel beam has a planar web with a pair of narrow rectangular cross-section flanges extending along opposite sides of said web and extending perpendicular to a face of said web in the same direction. The section capacity is optimized when Wf=(0.3)Db, Wf=(3.0)Df and WF=(30)t.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Applicant: SMORGON STEEL LITESTEEL PRODUCTS PTY LTD
    Inventors: Ross John. BARTLETT, Ross Ian DEMPSEY, Russell Lambert WATKINS, Alexander NOLLER, Keiji Yokoyama
  • BEAM
    Publication number: 20100005758
    Abstract: A hollow flange channel beam has a planar web with a pair of narrow rectangular cross-section flanges extending along opposite sides of said web and extending perpendicular to a face of said web in the same direction. The section capacity is optimized when Wf=(0.3)Db, Wf=(3.0)Df and WF=(30)t.
    Type: Application
    Filed: September 9, 2009
    Publication date: January 14, 2010
    Applicant: SMORGON STEEL LITESTEEL PRODUCTS PTY LTD
    Inventors: Ross John Bartlett, Ross Ian Dempsey, Russell Lambert Watkins, Alexander Noller, Keiji Yokoyama
  • An Improved Beam
    Publication number: 20080028720
    Abstract: A hollow flange channel beam has a planar web with a pair of narrow rectangular cross-section flanges extending along opposite sides of said web and extending perpendicular to a face of said web in the same direction. The section capacity is optimized when Wf=(0.3)Db, Wf=(3.0)Df and WF=(30)t.
    Type: Application
    Filed: June 23, 2004
    Publication date: February 7, 2008
    Applicant: Smorgon Steel LiteSteel Products Pty Ltd
    Inventors: Ross John Bartlett, Ross Ian Dempsey, Russell Lambert Watkins, Alexander Noller, Keiji Yokoyama
  • Structural beam
    Patent number: D541437
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: April 24, 2007
    Assignee: Smorgon Steel LiteSteel Products Pty Ltd.
    Inventors: Ross Ian Dempsey, Russell Lambert Watkins
  • Structural beam
    Patent number: D541438
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: April 24, 2007
    Assignee: Smorgon Steel LiteSteel Products Pty Ltd
    Inventors: Ross Ian Dempsey, Russell Lambert Watkins
  • Structural beam
    Patent number: D542421
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: May 8, 2007
    Assignee: Smorgon Steel LiteSteel Products Pty Ltd.
    Inventors: Ross Ian Dempsey, Russell Lambert Watkins
  • Extended welded metal section for an I-beam structure
    Patent number: D417290
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: November 30, 1999
    Assignee: Tube Technology Pty, Ltd.
    Inventors: Leslie David Goleby, Russell Lambert Watkins