# US 11,305,027 B2 · UV sterilization system and device and related methods

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- Number: US 11,305,027 B2
- Document ID: US11305027B2
- Status: Granted
- Kind: B2
- Application number: 16/846,550
- Filed: 2020-04-13
- Published: 2020-09-17
- Granted: 2022-04-19
- Earliest claimed: 2017-02-17
- Assignees: Seal Shield, LLC
- Applicants: Seal Shield, LLC
- Inventors: Christian Davis
- Web page: https://patentgrep.com/patent/US11305027B2

## CPC

- A61L 2/10: Ultraviolet [UV] radiation
- A61L 2/24: Apparatus using programmed or automatic operation
- G06K 7/10366: {the interrogation device being adapted for miscellaneous applications}
- A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
- A61L 2202/122: Chambers for sterilisation
- A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS

## Abstract

A method is for operating a UV sterilization device including a housing defining a cavity, and having a door configured to permit access to the cavity, and trays carried within the cavity. Each tray is configured to receive a mobile wireless communications device. The UV sterilization device may include UV CBAs carried within the cavity respectively adjacent the trays, each UV CBA having LED UV sources configured to irradiate the mobile wireless communications device with UV radiation. The UV sterilization device may include a controller, and the method may include operating the controller to selectively power one of the UV CBAs for disinfecting the mobile wireless communications device.

## Claims

### Claim 1

A method for operating an ultraviolet (UV) sterilization system comprising a server, and a plurality of UV sterilization devices, each UV sterilization device comprising a housing defining a cavity therein, and having a door configured to permit access to the cavity, at least one tray carried within the cavity configured to receive at least one device, the at least one device including a radio frequency (RF) identification (ID) tag, at least one UV circuit board assembly (CBA) carried within the cavity respectively adjacent the at least one tray and comprising a plurality of light emitting diode ultraviolet (LED UV) sources configured to irradiate the at least one device with UV radiation, each UV sterilization device comprising a transceiver configured to communicate with the server, and at least one RF transmitter coupled to a controller and configured to energize the RFID tag, the method comprising:
operating the controller to identify the at least one device based upon an RF signal from the RFID tag, and determine a position and a number of the at least one device based upon the RF signal from the RFID tag;
operating each UV sterilization device to selectively power the at least one UV CBA for disinfecting the at least one device based upon the identification of the at least one device and so that unused trays from the at least one tray are not irradiated, and send at least one status message to the server; and
operating the server to provide a web interface portal for accessing respective status information for the plurality of UV sterilization devices.

### Claim 2 (depends on 1)

The method of claim 1 wherein the at least one tray comprises a material transparent to UV radiation.

### Claim 3 (depends on 2)

The method of claim 2 wherein the material comprises quartz.

### Claim 4 (depends on 1)

The method of claim 1 further comprising operating each UV sterilization device to selectively power the at least one UV CBA when the at least one device is detected on a respective tray.

### Claim 5 (depends on 1)

The method of claim 1 further comprising operating each UV sterilization device to unlock the door based upon a code received from a keypad.

### Claim 6 (depends on 1)

The method of claim 1 further comprising operating each UV sterilization device to communicate with a wireless base station.

### Claim 7 (depends on 1)

The method of claim 1 further comprising operating each UV sterilization device to create positive air pressure in the cavity when the door is open.

### Claim 8

A method for operating a UV sterilization device including a housing defining a cavity therein, a door configured to permit access to the cavity, and at least one tray carried within the cavity and configured to receive at least one device, the at least one device including a radio frequency (RF) identification (ID) tag, the UV sterilization device including at least one UV circuit board assembly (CBA) carried within the cavity respectively adjacent the at least one tray and comprising a plurality of LED UV sources configured to irradiate the at least one device with UV radiation, the UV sterilization device including a controller and at least one RF transmitter coupled to the controller to energize the RFID tag, the method comprising:
operating the controller to identify the at least one device based upon an RF signal from the RFID tag, and determine a position and a number of the at least one device based upon the RF signal from the RFID tag; and
operating the controller to selectively power the at least one UV CBA for disinfecting the at least one device.

### Claim 9 (depends on 8)

The method of claim 8 wherein the at least one tray comprises a material transparent to UV radiation.

### Claim 10 (depends on 9)

The method of claim 9 wherein the material comprises quartz.

### Claim 11 (depends on 8)

The method of claim 8 further comprising operating the controller to selectively power the at least one UV CBA when the at least one device is detected on a respective tray.

### Claim 12 (depends on 8)

The method of claim 8 further comprising operating the controller to unlock the door based upon a code received from a keypad.

### Claim 13 (depends on 8)

The method of claim 8 further comprising operating the controller to communicate with a wireless base station.

### Claim 14 (depends on 8)

The method of claim 8 further comprising operating the controller to create positive air pressure in the cavity when the door is open.

### Claim 15

A method for operating a UV sterilization device including a housing defining a cavity therein, a door configured to permit access to the cavity, and at least one tray carried within the cavity and configured to receive at least one device, the at least one tray comprising a material transparent to UV radiation, the at least one device including a radio frequency (RF) identification (ID) tag, the UV sterilization device including at least one UV circuit board assembly (CBA) carried within the cavity respectively adjacent the at least one tray and comprising a plurality of LED UV sources configured to irradiate the at least one device with UV radiation, the UV sterilization device including a controller and at least one RF transmitter coupled to the controller to energize the RFID tag, the method comprising:
operating the controller to selectively power the at least one UV CBA for disinfecting the at least one device;
operating the controller to identify the at least one device based upon an RF signal from the RFID tag, and determine a position and a number of the at least one device based upon the RF signal from the RFID tag;
operating each UV sterilization device to communicate with a wireless base station; and
operating the controller to create positive air pressure in the cavity when the door is open.

### Claim 16 (depends on 15)

The method of claim 15 wherein the material comprises quartz.

### Claim 17 (depends on 1)

The method of claim 1 wherein each UV sterilization device comprises a light louver carried by the housing and configured to permit air to flow out of the cavity.

### Claim 18 (depends on 17)

The method of claim 17 wherein the light louver comprises a plurality of interdigitated arms.

### Claim 19 (depends on 8)

The method of claim 8 wherein each UV sterilization device comprises a light louver carried by the housing and configured to permit air to flow out of the cavity.

### Claim 20 (depends on 19)

The method of claim 19 wherein the light louver comprises a plurality of interdigitated arms.
