Patents by Inventor David Crookham

David Crookham 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: 7325998
    Abstract: A bollard includes a bollard post having a lamp which includes a louver stack. The louver stack includes louvers spaced apart in the longitudinal direction of the bollard post. The bollard post is rectangular in cross section and the louver stack extends outwardly beyond the periphery of the bollard. There is a primary light source inwardly of the louver stack and a mechanism for providing light downwardly about the base end of the bollard post. One such mechanism includes an LED providing a light wash down the bollard post from beneath where that louver extends outwardly of the periphery of the bollard post. A second mechanism employs a top reflector above the primary light source to reflect light downwardly about the light source. Bottom reflector surfaces direct the light from the top reflector outwardly to louver reflectors located beneath the lowermost louver. Such reflectors can reflect light downwardly for light wash of the bollard post and an illumination about the base of the bollard post.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: February 5, 2008
    Assignee: Acuity Brands, Inc.
    Inventors: Michael Leonhardt, Tori C. Poppenheimer, David Crookham, Nicole Skogg
  • Publication number: 20070189579
    Abstract: A graphically based encoded image, symbol or icon that can serve as a link from physical material or visual displays to electronic data to retrieve specific or general information. In one example, a graphic image is encoded with a value that is linked to a reference lookup table. For example, a numeric value may be encoded to form an encoded image by providing a primary image, such as a logo, and by positioning one or more secondary images or shapes in reference to the primary image, wherein the position of the secondary image relative to the primary image corresponds or relates to the numeric value. Generally, the encoded image may be in the form of any shape, figure or logo, and may be associated with, for example, an advertisement, web site, marketing program, corporate promotion, product promotion, sweepstakes, business cards, personal information, and other mediums for the exchange of information.
    Type: Application
    Filed: January 27, 2007
    Publication date: August 16, 2007
    Inventors: David Crookham, Nicole Skogg
  • Publication number: 20070076416
    Abstract: A bollard includes a bollard post having a lamp which includes a louver stack. The louver stack includes louvers spaced apart in the longitudinal direction of the bollard post. The bollard post is rectangular in cross section and the louver stack extends outwardly beyond the periphery of the bollard. There is a primary light source inwardly of the louver stack and a mechanism for providing light downwardly about the base end of the bollard post. One such mechanism includes an LED providing a light wash down the bollard post from beneath where that louver extends outwardly of the periphery of the bollard post. A second mechanism employs a top reflector above the primary light source to reflect light downwardly about the light source. Bottom reflector surfaces direct the light from the top reflector outwardly to louver reflectors located beneath the lowermost louver. Such reflectors can reflect light downwardly for light wash of the bollard post and an illumination about the base of the bollard post.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 5, 2007
    Inventors: Michael Leonhardt, Tori Poppenheimer, David Crookham, Nicole Skogg
  • Patent number: 7182547
    Abstract: A bollard includes a bollard post having a lamp which includes a louver stack. The louver stack includes louvers spaced apart in the longitudinal direction of the bollard post. The bollard post is rectangular in cross section and the louver stack extends outwardly beyond the periphery of the bollard. There is a primary light source inwardly of the louver stack and a mechanism for providing light downwardly about the base end of the bollard post. One such mechanism includes an LED providing a light wash down the bollard post from beneath where that louver extends outwardly of the periphery of the bollard post. A second mechanism employs a top reflector above the primary light source to reflect light downwardly about the light source. Bottom reflector surfaces direct the light from the top reflector outwardly to louver reflectors located beneath the lowermost louver. Such reflectors can reflect light downwardly for light wash of the bollard post and an illumination about the base of the bollard post.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: February 27, 2007
    Assignee: Acuity Brands, Inc.
    Inventors: Michael Leonhardt, Tori C. Poppenheimer, David Crookham, Nicole Skogg
  • Patent number: 7077598
    Abstract: A bollard for mounting to a foundation includes a bollard post element having a cavity therein with a base plate integrally fixed about its periphery to the bollard post element at the cavity. The base plate includes anchor holes and threaded holes extending therethrough. Levelers having threaded shafts with pads on one end and drivers on the other engage the threaded holes. Threaded anchor shafts extendible through the anchor holes and fixable to the foundation for the bollard are drawn in tension by nuts on top of the based plate. This simultaneously places the levelers in compression. In installation, the highest point on the foundation beneath the periphery of the base plate is established and the levelers adjusted to extend the bollard vertically with the bollard extending from that highest point.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: July 18, 2006
    Assignee: Acuity Brands, Inc.
    Inventors: Michael Leonhardt, Tori C. Poppenheimer, David Crookham
  • Patent number: D572397
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: July 1, 2008
    Assignee: Acuity Brands, Inc.
    Inventors: Nicole Skogg, David Crookham, Michael Leonhardt
  • Patent number: D607592
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: January 5, 2010
    Assignee: ABL IP Holding LLC
    Inventors: Nicole Skogg, David Crookham, Michael Leonhardt