Patents Assigned to Dust Free, Inc.
  • Germicidal lamp retaining assembly
    Publication number: 20050174778
    Abstract: An angled germicidal lamp is used to illuminate a coil and drain pan for optimum energy utilization. An angled mount formed of two retention clips positions a germicidal lamp at a desired angle. A security access cover ensures that the germicidal lamp is disconnected from its power supply before access. Multiple germicidal lamps may be mounted by a single retention clip.
    Type: Application
    Filed: April 6, 2005
    Publication date: August 11, 2005
    Applicant: Dust Free, Inc.
    Inventors: Gregg Burnett, Thomas Burk
  • Angled UV fixture in a-coil
    Patent number: 6550257
    Abstract: An angled germicidal lamp is used to illuminate a coil and drain pan for optimum energy utilization. In one embodiment, a variable angled mount is used for positioning a germicidal lamp at a desired angle at the time of installation. In a second embodiment, a fixed angled mount is used for installation where the desired angle of mounting is known prior to installation. The angled germicidal lamp may be used with any coil installation, including flat, tilted and A-coils. For A-coil installations, a preformed delta plate is provided to ease installation.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 22, 2003
    Assignees: Heatcraft Inc., Dust Free, Inc.
    Inventors: Gregory T. Goetzinger, Robert E. Smith, Gregg Burnett
  • Angled UV fixture
    Patent number: 6539727
    Abstract: An angled germicidal lamp is used to illuminate a coil and drain pan for optimum energy utilization. In one embodiment, a variable angled mount is used for positioning a germicidal lamp at a desired angle at the time of installation. In a second embodiment, a fixed angled mount is used for installation where the desired angle of mounting is known prior to installation. The angled germicidal lamp may be used with any coil installation, including flat, tilted and A-coils. For A-coil installations, a preformed delta plate is provided to ease installation.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 1, 2003
    Assignee: Dust Free, Inc.
    Inventor: Gregg Burnett
  • Adjustable air filtering device
    Patent number: 5364458
    Abstract: An adjustable filter uses an eight member frame construction to provide a wide range of filter sizes. A panel for encasing one or more layers of filtering materials within the frame is formed from a grid having a border which unevenly encompasses the crossbars of the panel in order to allow various sizes of panels to be formed without producing exposed barbs and without increasing the air resistance of the filter. An embodiment using an electric field is disclosed to enhance the filtering properties of the filter.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: November 15, 1994
    Assignee: Dust Free, Inc.
    Inventors: Gilbert W. Burnett, Robert B. Holland
  • Multi-sided air filter with wraparound filter media
    Patent number: 5266090
    Abstract: A filtering unit having multiple filtering sides uses one or more filtering elements wrapped around an inner housing containing a blowing device. Outer housing panels are disposed about the filtering elements. The filtering elements and outer housing panels are held in place by one or more stays.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: November 30, 1993
    Assignee: Dust Free, Inc.
    Inventor: Gilbert W. Burnett