Patents Assigned to Dust Free, LP
  • Patent number: 11892190
    Abstract: The present heating, ventilation and air conditioning (HVAC) air conveyance apparatus is plurality of panels adapted to be field-assembled to form the conveyance apparatus. These panels include a pair of first quadrilateral panels, each defining a right-angle flange extending from each of a pair of opposite edges and a pair of second quadrilateral panels, each defining a hemmed cleat along each of a pair of opposite edges. Each hemmed cleat is shaped and dimensioned to receive one of the first quadrilateral panel right-angle flanges to form the HVAC air conveyance apparatus. Also, HVAC unit mating flanges extending from each other edge of each of the first quadrilateral panels and/or from each other edge of each of the second quadrilateral panels, such that at least a pair of opposed peripheral HVAC unit mating flanges extend from each end of the HVAC air conveyance apparatus.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: February 6, 2024
    Assignee: Dust Free, LP
    Inventors: Fadi Hurtubise, Gregg W. Burnett, Claudio Santini, Nicholas Raissis
  • Patent number: 10814030
    Abstract: A hybrid full-spectrum air purification device employs a UV light source; ionization, both negative and positive or only negative ions; and, adsorbent VOC filters, zeolite, potassium permanganates, carbon, polymers, tris(hydroxymethyl)aminomethane, tromethamine, and/or the like, applied to carbon monolith structures. Room temperature bi-metallic nano-particle catalysts, such as supported noble metal based catalysts (e.g. platinum, palladium, gold, silver, etc.) with inert oxide in this case platinized tin oxide (Pt/SnOx) combined with, or without, non-noble metal oxides such as manganese dioxide (MnO2) and/or titanium dioxide (TiO2), and/or the like, may also be applied to the carbon monolith(s). The device is suitable for installation immediately above, or adjacent, a cooling coil with the air flow entering the germicidal (UV) area first, followed by the VOC catalyst filters and finally being exposed to the dual/single polarity ionization zone.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: October 27, 2020
    Assignee: DUST FREE, LP
    Inventors: Gregg W. Burnett, Joshua Pulis
  • Patent number: 9782510
    Abstract: A photocatalytic device has an ultraviolet light source and a plurality of photocatalytic structures, such as hydrated metallic catalyst surfaces. One or more catalyst substrates are adapted to support a hydroxyl radical reaction with ultraviolet light and water vapor that results in hydro peroxides and hydroxyl ions; an ultraviolet light source provides ultraviolet light to the catalyst substrates. The catalyst substrates comprising a hydrated multi-metallic catalyst having two or more elements or compounds selected from the group: Titanium dioxide, Titanium Platinum, Gold, Silver, Copper, Rhodium, Ruthenium, Lanthanum, Carbon, and Fluoride. In different embodiments, various combinations of these elements or compounds may be used in the catalyst, such as a combination of five or more of the elements or compounds.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: October 10, 2017
    Assignee: DUST FREE, LP
    Inventor: Gregg William Burnett
  • Patent number: 9593861
    Abstract: Systems and methods for controlling and monitoring Indoor Air Quality (IAQ) devices are described. In some embodiments, a system may include an IAQ component configured to alter the quality of the air entering, leaving, or circulating within a building, a sensor coupled to the IAQ component, the sensor configured to determine a status of the IAQ component, and a transmitter coupled to the sensor, the transmitter configured to transmit an indication of the status to a controller. In other embodiments, a method may include receiving, at a Heating, Ventilation, and/or Air Conditioning (HVAC) thermostat, data from a sensor coupled to an IAQ component configured to alter the quality of the air entering, leaving, or circulating within a building, and determining, by the HVAC thermostat, a status of the IAQ component based upon the data.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: March 14, 2017
    Assignee: DUST FREE, LP
    Inventor: Gregg W. Burnett
  • Patent number: 9205169
    Abstract: A photocatalytic device includes a housing with inlet and outlet openings. Hydrated multi-metallic catalyst substrate(s) disposed within the housing support a hydroxyl radical reaction with water vapor and ultraviolet light from a source in the housing, resulting in hydro peroxides and hydroxyl ions. At least one ion generator disposed in the housing provides ions. A fan disposed within the housing causes air to enter the inlet opening, circulate through the catalyst substrate(s), and exit the outlet opening, carrying the ions. A power converter disposed in the housing is operatively coupled to a power connector adapted to accept a plurality of plugs or cords. Each plug or cord is configured to plug into a corresponding conventional outlet to supply a corresponding conventional alternating current voltage at conventional cycles to the power converter for powering the ultraviolet light source, ion generator(s) and fan.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: December 8, 2015
    Assignee: Dust Free, LP
    Inventor: Gregg W. Burnett
  • Publication number: 20150224218
    Abstract: A photocatalytic device comprising Manganese dioxide and Titanium dioxide coated housing, an ultraviolet light source disposed therein, and a plurality of multi-metallic photocatalytic structures, such as hydrated multi-metallic catalyst substrates, is adapted to be deployed in conjunction with the exchange air intake of a mini-split system. The photocatalytic device has (a) Manganese dioxide and Titanium dioxide coated reflector(s) that is/are positioned to reflect ultraviolet light onto the photocatalytic structures. The photocatalytic device may have at least one carbon fiber and/or needle type ionizer disposed in the housing. The photocatalytic device may also have at least one sensor and may be wirelessly coupled to a computing device or controller.
    Type: Application
    Filed: April 21, 2015
    Publication date: August 13, 2015
    Applicant: DUST FREE, LP
    Inventor: Gregg William Burnett
  • Patent number: 9066988
    Abstract: A photocatalytic device has an ultraviolet light source and a plurality of photocatalytic structures, such as hydrated quad-metallic catalyst surfaces. The photocatalytic device has curved reflectors that are positioned to reflect ultraviolet light against a face of the photocatalytic structures. The curved reflectors are shaped to minimize the distance traveled by the ultraviolet light between the light source and the photocatalytic structure. The curved reflector is further shaped to direct reflected ultraviolet against the surface of the photocatalytic structure in a perpendicular direction.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: June 30, 2015
    Assignee: Dust Free, LP
    Inventor: Gregg W. Burnett
  • Patent number: 9011780
    Abstract: A photocatalytic device comprising an ultraviolet light source and a plurality of multi-metallic photocatalytic structures, such as hydrated quad-metallic catalyst surfaces, is mounted on a mini-split system. The photocatalytic device has curved reflectors that are positioned to reflect ultraviolet light against a face of the photocatalytic structures. The photocatalytic device has an exhaust deflection shield that directs airflow toward an intake of the mini-split or PTAC system.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: April 21, 2015
    Assignee: Dust Free, LP
    Inventor: Gregg William Burnett
  • Patent number: 8926899
    Abstract: Photocatalytic devices are described. In some embodiments, a photocatalytic device may include a cylindrical housing having an inlet opening and an outlet opening; one or more catalyst substrates disposed within the cylindrical housing and adapted to support a hydroxyl radical reaction with ultraviolet light and water vapor that results in hydro peroxides and hydroxyl ions; an ultraviolet light source disposed within the cylindrical housing and adapted to provide the ultraviolet light to the one or more catalyst substrates; and a fan disposed within the cylindrical housing and adapted to cause air to enter the cylindrical housing via the inlet opening, circulate through the one or more catalyst substrates within the cylindrical housing, and exit the cylindrical housing via the outlet opening.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: January 6, 2015
    Assignee: Dust Free, LP
    Inventor: Gregg William Burnett
  • Patent number: 8925725
    Abstract: Systems and methods for the packaging of air treatment devices are shown and described. In some embodiments, a package may be configured to store an air treatment device. For example, the air treatment device may be an air filter, cleaner, purifier, or the like. The package may include a first lateral surface configured to accommodate a proximal end of the air treatment device and a second lateral surface configured to accommodate a distal end of the air treatment device. The package may further comprise a middle surface coupled between the first and second lateral surfaces. In some cases, at least a portion of the first or second lateral surfaces may include an opaque area. Moreover, at least a portion of the middle surface may include a transparent or translucent area configured to reveal at least a portion of the air treatment device.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: January 6, 2015
    Assignee: Dust Free, LP
    Inventor: Gregg William Burnett
  • Patent number: 8658101
    Abstract: A photocatalytic device has an ultraviolet light source and a plurality of photocatalytic structures, such as hydrated quad-metallic catalyst surfaces. The photocatalytic device has curved reflectors that are positioned to reflect ultraviolet light against a face of the photocatalytic structures. The curved reflectors are shaped to minimize the distance traveled by the ultraviolet light between the light source and the photocatalytic structure. The curved reflector is further shaped to direct reflected ultraviolet against the surface of the photocatalytic structure in a perpendicular direction.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: February 25, 2014
    Assignee: Dust Free, LP
    Inventor: Gregg William Burnett
  • Patent number: 6932494
    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: Grant
    Filed: March 31, 2003
    Date of Patent: August 23, 2005
    Assignee: Dust Free, LP
    Inventors: Gregg Burnett, Thomas K. Burk