# US 11,305,025 B1 · Disinfectant apparatus

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- Number: US 11,305,025 B1
- Document ID: US11305025B1
- Status: Granted
- Kind: B1
- Application number: 16/900,134
- Filed: 2020-06-12
- Granted: 2022-04-19
- Earliest claimed: 2020-04-28
- Applicants: Robert Barry
- Inventors: Robert Barry
- Web page: https://patentgrep.com/patent/US11305025B1

## CPC

- A61L 2/10: Ultraviolet [UV] radiation
- A61L 2/24: Apparatus using programmed or automatic operation
- A61L 2103/05: Living organisms or biological materials
- A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
- 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)

## Abstract

A disinfectant device includes a housing, a UV source disposed within the housing, a reflector for directing rays from the UV source downward through a bottom of the housing, a motion detector, a frequency detector, and an indicator light, said UV source specific to a non-visible light spectrum in a range of 200 nm to 222 nm. The bottom can be an open bottom or may include a glass covering. A timer can be included to display a duration for the UV source to be turned on. The device can include a protective curtain about a perimeter of the bottom of the housing. The reflector can be ellipsoidal in shape to direct the rays from the UV source downward through the bottom of the housing.

## Claims

### Claim 1

A disinfectant device comprising:
a housing that includes a top wall, a front wall, a back wall, a first side wall, and a second side wall, that together form the housing;
said housing having a lower bottom peripheral edge that defines an open bottom of the housing;
a UV lamp disposed within the housing such that UV rays are directed downward through the open bottom of the housing;
said UV lamp being completely contained within the housing and spaced above the lower bottom peripheral edge of the housing;
a reflector that is disposed over the UV lamp for directing rays from the UV lamp downward through the open bottom of the housing;
said reflector being ellipsoidal in shape for concentrating the UV rays downward through the open bottom of the housing;
said reflector spaced below the top wall of the housing and disposed between the top wall of the housing and the UV lamp;
a motion detector configured to detect hands under the open bottom of the housing and to transmit a signal to turn the UV lamp on for a predetermined period of time when hands are detected under the bottom of the housing;
wherein the UV lamp is elongated having a predetermined diameter, and a lower edge of the UV lamp is spaced from the open peripheral bottom edge a distance that is greater than the diameter of the UV lamp;
wherein the ellipsoidal shaped reflector includes a support bracket having a flat wall that is secured to the back wall of the housing by means of one or more fasteners that extend through the bracket flat wall and into the back wall of the housing;
wherein the device further includes an AC power supply that is disposed at the first side wall;
further comprising a frequency detector configured to detect a frequency of the UV rays in order to determine if the UV lamp is turned on;
wherein said UV lamp emits rays of light in a non-visible light spectrum in a range of 200 nm to 222 nm;
a timer mounted at the front wall of the housing and wherein the UV lamp is controlled to stay on for a predetermined time as indicated by the timer responsive to the frequency detector;
an indicator light mounted at the front wall of the housing;
wherein the frequency detector is disposed within the housing adjacent to but spaced from the UV lamp;
wherein the ellipsoidal shaped reflector has a remote distal end that covers a distal end of the UV lamp;
and wherein the distal end of both the ellipsoidal shaped reflector and UV lamp are spaced from the second side wall of the housing.

### Claim 2 (depends on 1)

The disinfectant device of claim 1 wherein the frequency detector is attached at the back wall of the housing.

### Claim 3 (depends on 2)

The disinfectant device of claim 2 wherein a distal end of the reflector extends beyond the distal end of the UV lamp.

### Claim 4

A disinfectant device comprising:
a housing that includes a top wall, a front wall, a back wall, a first side wall, and a second side wall, that together form the housing;
said housing having a lower bottom peripheral edge that defines an open bottom of the housing;
a UV lamp disposed within the housing such that UV rays are directed downward through the open bottom of the housing;
said UV lamp being completely contained within the housing and spaced above the lower bottom peripheral edge of the housing;
a reflector that is disposed over the UV lamp for directing rays from the UV lamp downward through the open bottom of the housing;
said reflector being ellipsoidal in shape for concentrating the UV rays downward through the open bottom of the housing;
said reflector spaced below the top wall of the housing and disposed between the top wall of the housing and the UV lamp;
a motion detector configured to detect hands under the open bottom of the housing and to transmit a signal to turn the UV lamp on for a predetermined period of time when hands are detected under the open bottom of the housing;
and on the front wall of the housing disposing one of a timer and indicator light to indicate a duration of the UV lamp being turned on;
and further comprising a protective curtain disposed about the open bottom of the housing.

### Claim 5 (depends on 4)

The disinfectant device of claim 4 wherein the protective curtain extends about the entire lower bottom peripheral edge that defines the open bottom of the housing.

### Claim 6 (depends on 5)

The disinfectant device of claim 5 wherein the protective curtain is comprised of separate respective front, rear and side flaps.

### Claim 7 (depends on 6)

The disinfectant device of claim 6 including fasteners for securing the front, rear and side flaps at the bottom peripheral edge that defines the open bottom of the housing.