Ozone generator device

• US 9,078,941 B2
• Filed: 09/07/2010
• Issued: 07/14/2015
• Est. Priority Date: 09/07/2009
• Status: Active Grant

• Current Assignee: Dow Global Technologies LLC (Dow, Inc.)
• Original Assignee: Dow Global Technologies LLC (Dow, Inc.)
• Inventors: Dunkley, Peter, Soper, Kenneth John
• Primary Examiner(s): Tai, Xiuyu
• Application Number:
  US13/394,581
• Publication Number:
  US 20120230879A1
• Time in Patent Office: 1,771 Days
• Field of Search: 422/186
• US Class Current: 1/1
• CPC Class Codes: A61L 2/202 Ozone
• CPC Class Codes: A61L 2202/11 Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
• CPC Class Codes: A61L 2202/25 Rooms in buildings, passenger compartments
• CPC Class Codes: A61L 9/015 using gaseous or vaporous substances, e.g. ozone A61L9/20 takes precedence ; evaporation in general B01B1/005
• CPC Class Codes: A61L 9/12 Apparatus, e.g. holders, therefor
• CPC Class Codes: C01B 13/11 by electric discharge
• CPC Class Codes: C01B 13/115 characterised by the electrical circuits producing the electrical discharge
• CPC Class Codes: C01B 2201/22 Constructional details of the electrodes
• CPC Class Codes: C01B 2201/32 Constructional details of the dielectrics
• CPC Class Codes: C01B 2201/62 Air
• CPC Class Codes: C01B 2201/64 Oxygen

Abstract

An ozone generator cartridge 60 suitable for a sterilization, decontamination and/or sanitation device. The cartridge comprises a sealable housing 60 for providing a corona discharge, the housing containing at least one power supply unit 64 and at least one inlet 65 for connection to an oxygen or air supply, the cartridge including at least part of at least one ozone conversion cell 63 attached to and extending from an external surface of a wall of the sealed housing, the conversion cell extending into a delivery conduit 52 of a decontamination device that leads to at least one discharge outlet 16.

Claims

1. A sterilisation, decontamination and/or sanitation device comprising:

a humidifier unit;

an ozone generator cartridge configured to provide a corona discharge;

a discharge outlet;

a single fan;

a delivery conduit disposed between the fan and the discharge outlet, the delivery conduit defines a first internal volume fluidly coupled at a base to the fan, and the internal volume fluidly coupled at an upper end to the discharge outlet;

the ozone generator cartridge comprises;

a sealable housing that defines a mounting plate, side walls extending orthogonally from the mounting plate, and a cover coupled to the side walls;

a second interior volume defined by the mounting plate, side walls, and cover of the sealable housing, the second interior volume distinct from the first interior volume, and the fan resides outside the second interior volume;

a power supply unit mounted on a first surface of the mounting plate, the power supply unit within the second interior volume;

an inlet configured to couple to an oxygen or air supply;

an ozone conversion cell mounted on a second surface of the mounting plate, the second surface opposite the first surface, and the ozone conversion cell outside the second interior volume; and

the mounting plate of the ozone generator cartridge supports the ozone conversion cell, and the mounting plate forms a side wall of the delivery conduit such that the ozone conversion cell extends transversely across the delivery conduit.

2. A device as claimed in claim 1 wherein the ozone generator cartridge is detachable from the delivery conduit to enable its replacement.

3. A device as claimed in claim 1 wherein the delivery conduit is in the general shape of a rectangle having three solid sides, the fourth side being provided by the ozone generator cartridge.

4. A device as claimed in claim 1 wherein ozone generated by the ozone generator cartridge is discharged through the discharge outlet comprising at least two at least partially converging plates.

5. A device as claimed in claim 1 wherein the humidifier, ozone generator cartridge, and conduit are provided within a housing with the discharge outlet extends from the intended upper surface of the housing.

6. The device of claim 1 wherein the sealable housing further comprises:

said sides walls further comprise a first side wall, a second side wall, and a third side wall;

the first side wall has a first length, and the second and third side walls have a second and third length respectively, where the second length is equal to less than the first length, and where the third length is equal to less than the first length; and

the cover further comprises;

an L-shaped panel that comprises a long limb having a fourth length and a short limb having a fifth length, wherein the fourth length is equal to less than the fifth length; and

the short limb defines an opposing long side wall of the housing.

7. The device of claim 1 wherein the ozone conversion cell extends transversely across the delivery conduit perpendicular to a direction of airflow from the fan to the discharge outlet.

8. The device of claim 1 wherein the mounting plate defines a plane parallel to a direction of airflow from the fan to the discharge outlet.

9. The device of claim 1 wherein the ozone conversion cell extends transversely across a direction of airflow from the fan to the discharge outlet.