Room decontamination apparatus and method

• US 9,795,701 B2
• Filed: 07/13/2016
• Issued: 10/24/2017
• Est. Priority Date: 09/23/2014
• Status: Active Grant

• Current Assignee: Diversey Incorporated (Sealed Air)
• Original Assignee: Diversey Incorporated (Sealed Air)
• Inventors: Dayton, Roderick M.
• Primary Examiner(s): Johnston, Phillip A
• Assistant Examiner(s): TSAI, HSIEN C
• Application Number:
  US15/209,337
• Publication Number:
  US 20160317690A1
• Time in Patent Office: 468 Days
• CPC Class Codes: A61L 2/00 Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for contact lenses A61L12/00; atomisers for disinfecting agents A61M; sterilisation of packages or package contents in association with packaging B65B55/00; treatment of water, waste water, sewage or sludge C02F; disinfecting paper D21H21/36; disinfecting devices for water closets E03D; articles having provision for disinfection, see the relevant subclasses for these articles, e.g. H04R1/12
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61L 2/24 Apparatus using programmed or automatic operation
• CPC Class Codes: A61L 2/26 Accessories or devices or components used for biocidal treatment
• CPC Class Codes: A61L 2202/14 Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• CPC Class Codes: A61L 2202/25 Rooms in buildings, passenger compartments
• CPC Class Codes: A61L 9/00 Disinfection, sterilisation or deodorisation of air body deodorants A61Q15/00; purifying air by respirators A62B, A62D9/00; separating dispersed particles from gases or vapours B01D45/00 - B01D51/00, B03C3/00; chemical or biological purification of waste gases B01D53/34; production of ozone C01B13/10; air-conditioning systems incorporating sterilisation F24F3/16, F24F8/20

Abstract

Provided is a decontamination apparatus for decontaminating an enclosed room. The decontamination apparatus includes a source including a UVC bulb and a reflective shield arranged adjacent to the UVC bulb and configured to reflect UVC light emitted by the UVC bulb toward a region of the enclosed room to be decontaminated. A mounting system that is adjustable secures the source at a desired location within the enclosed room. A controller is operatively-connected to the source to terminate operation of the UVC bulb in response to a determination that an occupant is present within the enclosed room.

Claims

1. A decontamination apparatus for decontaminating an enclosed room, the decontamination apparatus comprising:

a source comprising a UVC bulb and a reflective shield arranged adjacent to the UVC bulb and configured to reflect UVC light emitted by the UVC bulb toward a region of the enclosed room to be decontaminated;

a mounting system that is adjustable to secure the source at a desired location within the enclosed room; and

a controller operatively-connected to the source to terminate operation of the UVC bulb in response to a determination that an occupant is present within the enclosed room, wherein

the reflective shield comprises a plurality of regions, each of the plurality of regions having a different arcuate shape comprising a different radius of curvature to reflect the UVC light emitted by the UVC bulb toward the region of the enclosed room to be decontaminated.

2. The decontamination apparatus of claim 1 further comprising a housing in which the UVC bulb and the reflective shield are mounted, the housing being adjustably coupled to pivot about a first axis of rotation.

3. The decontamination apparatus of claim 2, wherein the housing comprises a coupling that adjustably supports the UVC bulb to pivot about a second axis of rotation that is substantially perpendicular to the first axis of rotation.

4. The decontamination apparatus of claim 2 further comprising a focal indicator that emits light other than the UVC light to illuminate a target portion of the enclosed room that will be subjected to maximum exposure of the UVC light, wherein a direction in which the light other than the UVC light is emitted from the focal indicator is adjustable as a result of adjustment of the housing.

5. The decontamination apparatus of claim 4, wherein the focal indicator comprises a light source comprising at least one of a light emitting diode and a laser light.

6. The decontamination apparatus of claim 1 further comprising a door sensor operatively connected to transmit a signal to the controller indicative of a state of a door leading into the enclosed room, wherein the controller is configured to determine that the occupant is in the enclosed room and terminate operation of the UVC bulb based on the signal transmitted by the door sensor.

7. The decontamination apparatus of claim 6 further comprising a redundant occupancy sensing system operatively connected to transmit an occupant signal to the controller, the redundant occupancy sensing system comprising at least one additional occupant sensor that senses a property indicative of the occupant'"'"'s presence within the enclosed room and transmits the occupant signal to the controller in response, thereby causing the controller to terminate operation of the UVC bulb.

8. The decontamination apparatus of claim 7, wherein the at least one additional occupant sensor comprises at least one of:

a proximity sensor, a sound sensor, a light sensor, and a motion sensor.

9. The decontamination apparatus of claim 7, wherein the at least one additional occupant sensor comprises two or more of:

a proximity sensor, a sound sensor, a light sensor, and a motion sensor.

10. The decontamination apparatus of claim 1, wherein the support member comprises an adjustable length to extend between the surface of the enclosed room and the housing, and the mounting system further comprises a biasing mechanism that exerts a force against the surface of the enclosed room to maintain a position of the housing at an elevation vertically beneath a ceiling of the enclosed room.

11. The decontamination apparatus of claim 1 further comprising a plug that is to be plugged into a wall outlet in the enclosed room, the wall outlet being supplied by an electric power utility.