Patents by Inventor George McIlwraith

George McIlwraith 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).

  • Patent number: 8100551
    Abstract: A replacement light fixture for directing light emitted from a light source toward an area to be illuminated, including a base member upon with the light source is positioned and a reflector assembly detachably secured to a first and second mounting brackets that are mounted to a portion of the preexisting light fixture housing such that a lens portion of the reflector assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens portion.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: January 24, 2012
    Assignee: ABL IP Holding LLC
    Inventors: John T. Mayfield, III, Carl T. Gould, George McIlwraith, Christopher L. Sharp
  • Publication number: 20100091484
    Abstract: A replacement light fixture for directing light emitted from a light source toward an area to be illuminated, including a base member upon with the light source is positioned and a reflector assembly detachably secured to a first and second mounting brackets that are mounted to a portion of the preexisting light fixture housing such that a lens portion of the reflector assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens portion
    Type: Application
    Filed: December 14, 2009
    Publication date: April 15, 2010
    Inventors: John T. Mayfield, III, Carl T. Gould, George McIlwraith, Christopher L. Sharp
  • Patent number: 7635198
    Abstract: A replacement light fixture for directing light emitted from a light source toward an area to be illuminated, including a base member upon with the light source is positioned and a reflector assembly detachably secured to a first and second mounting brackets that are mounted to a portion of the preexisting light fixture housing such that a lens portion of the reflector assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens portion.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: December 22, 2009
    Assignee: Acuity Brands, Inc.
    Inventors: John T. Mayfield, III, Carl T. Gould, George McIlwraith, Christopher L. Sharp
  • Publication number: 20070211457
    Abstract: A replacement light fixture for directing light emitted from a light source toward an area to be illuminated, including a base member upon with the light source is positioned and a reflector assembly detachably secured to a first and second mounting brackets that are mounted to a portion of the preexisting light fixture housing such that a lens portion of the reflector assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens portion
    Type: Application
    Filed: February 12, 2007
    Publication date: September 13, 2007
    Inventors: John Mayfield, Carl Gould, George McIlwraith, Christopher Sharp
  • Patent number: 6301770
    Abstract: Coated articles having optically useful reflective properties suitable for manufacture of components of lighting fixtures and the like including parabolic louvers utilized as primary elements of fluorescent parabolic troffer lighting fixtures, the invention provides light sheets formed of said coated articles and used in the manufacture of lighting fixtures, the reflective lighting components formed from said light sheets and the coated articles including the coatings utilized for coating optically reflective substrates according to the invention. The coated articles are formed of reflective substrates and particularly polished metal substrates having reflectance values within a predetermined useful range, the substrates being coated preferably with a thin polymeric coating wherein the base polymer is polyester, polycarbonate, epoxy, acrylic, acrylate, etc.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: October 16, 2001
    Assignee: NSI Enterprises, Inc.
    Inventor: George McIlwraith
  • Patent number: 6164800
    Abstract: Coated articles having optically useful reflective properties suitable for manufacture of components of lighting fixtures and the like including parabolic louvers utilized as primary elements of fluorescent parabolic troffer lighting fixtures, the invention provides light sheets formed of said coated articles and used in the manufacture of lighting fixtures, the reflective lighting components formed from said light sheets and the coated articles including the coatings utilized for coating optically reflective substrates according to the invention. The coated articles are formed of reflective substrates and particularly polished metal substrates having reflectance values within a predetermined useful range, the substrates being coated preferably with a thin polymeric coating wherein the base polymer is polyester, polycarbonate, epoxy, acrylic, acrylate, etc.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: December 26, 2000
    Assignee: NSI Enterprises, Inc.
    Inventor: George McIlwraith
  • Patent number: 5194691
    Abstract: An improved device for providing EMI/RFI shielding for a joint is disclosed comprising a compressible, resilient sealing element and a conductive shielding element bonded to the sealing element and positioned such that the shielding element provides a direct electrical contact across the joint. The disclosed invention further provides a cabinet which effectively utilizes such a device. The disclosed invention also includes an improved cabinet construction which minimizes the paths by which moisture and debris may enter the cabinet interior, while providing a cabinet which is transportable without violating the integrity of the cabinet structure.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: March 16, 1993
    Assignee: Gichner Systems Group, Inc.
    Inventor: George McIlwraith
  • Patent number: 5147121
    Abstract: An improved device for providing EMI/RFI shielding for a joint is disclosed comprising a compressible, resilient sealing element and a conductive shielding element bonded to the sealing element and positioned such that the shielding element provides a direct electrical contact across the joint. The disclosed invention further provides a cabinet which effectively utilizes such a device. The disclosed invention also includes an improved cabinet construction which minimizes the paths by which moisture and debris may enter the cabinet interior, while providing a cabinet which is transportable without violating the integrity of the cabinet structure.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: September 15, 1992
    Assignee: Gichner Systems Group, Inc.
    Inventor: George McIlwraith
  • Patent number: 5020866
    Abstract: An improved device for providing EMI/RFI shielding for a joint is disclosed comprising a compressible, resilient sealing element and a conductive shielding element bonded to the sealing element and positioned such that the shielding element provides a direct electrical contact across the joint. The disclosed invention further provides a cabinet which effectively utilizes such a device. The disclosed invention also includes an improved cabinet construction which minimizes the paths by which moisture and debris may enter the cabinet interior, while providing a cabinet which is transportable without violating the integrity of the cabinet structure.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: June 4, 1991
    Assignee: Gichner Systems Group, Inc.
    Inventor: George McIlwraith
  • Patent number: D550881
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: September 11, 2007
    Assignee: Acuity Brands, Inc.
    Inventors: James Michael Lay, George McIlwraith
  • Patent number: D335284
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: May 4, 1993
    Assignee: Gichner Systems Group, Inc.
    Inventor: George McIlwraith
  • Patent number: RE34393
    Abstract: An improved device for providing EMI/RFI shielding for a joint is disclosed comprising a compressible, resilient sealing element and a conductive shielding element bonded to the sealing element and positioned such that the shielding element provides a direct electrical contact across the joint. The disclosed invention further provides a cabinet which effectively utilizes such a device. The disclosed invention also includes an improved cabinet construction which minimizes the paths by which moisture and debris may enter the cabinet interior, while providing a cabinet which is transportable without violating the integrity of the cabinet structure.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: September 28, 1993
    Assignee: Gichner Systems Group, Inc.
    Inventor: George McIlwraith
  • Patent number: D657904
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: April 17, 2012
    Assignee: ABL IP Holding LLC
    Inventors: John T. Mayfield, III, Russell Vern Rouse, George McIlwraith
  • Patent number: D672911
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: December 18, 2012
    Assignee: ABL IP Holding LLC
    Inventors: John T. Mayfield, III, Russell Vern Rouse, George McIlwraith
  • Patent number: D672912
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: December 18, 2012
    Assignee: ABL IP Holding LLC
    Inventors: John T. Mayfield, III, Russell Vern Rouse, George McIlwraith
  • Patent number: D673324
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: December 25, 2012
    Assignee: ABL IP Holding LLC
    Inventors: John T. Mayfield, III, Russell Vern Rouse, George McIlwraith