Wireless rechargeable and portable anti-microbial respirator

Patent metadata

Field	Value
Publication number	US-12059586-B2
Application number	US-202117458649-A
Country	US
Kind code	B2
Filing date	Aug 27, 2021
Priority date	Aug 27, 2021
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

The present invention provides a wireless rechargeable and portable anti-microbial respirator. The respirator includes a face-piece with an air inlet and an air outlet; a first belt and a second belt, the first belt is connected to ends of the face-piece, and the second belt is configured to wrap around the waist of a user; a flexible outlet tube, where the first end of the flexible outlet tube is connected to the air outlet of the face-piece; a flexible intake tube, where the first end of the flexible intake tube is connected to the air inlet of the face-piece; and a filtration system fixed onto the second belt. The key features of the respirator in the present invention include highly antibacterial and antiviral, long duration, reusable, self-cleaning and self-disinfecting, lightweight and portable, wireless power transfer, and great airflow and comfortable breathing.

First claim

The invention claimed is:

1. A wireless rechargeable and portable anti-microbial respirator, comprising:
a face-piece with an air inlet and an air outlet;
a first belt and a second belt, wherein the first belt is connected to ends of the face-piece, and the second belt is configured to wrap around the waist of a user;
a flexible outlet tube, wherein the first end of the flexible outlet tube is connected to the air outlet of the face-piece;
a flexible intake tube wherein the first end of the flexible intake tube is connected to the air inlet of the face-piece; and
a filtration system fixed onto the second belt, wherein the filtration system comprises:
a housing;
a first chamber located in the housing, configured to permit exhaled air to flow into the filter system, wherein the first chamber comprises a first channel connected to the second end of the flexible outlet tube, and an upper part of the first chamber is covered by a plate with a plurality of meshes such that only the first channel is exposed, and the meshes are configured to allow fresh airflow to flow into the first chamber;
a second chamber located in the housing, configured to permit purified air to flow out of the filter system, wherein the second chamber comprises a second channel connected to the second end of the flexible intake tube, the second chamber further including a light panel and a fan unit; and the first chamber and the second chamber are separated by a filter unit;
a third chamber located in the housing, wherein the third chamber includes a rechargeable battery, an electric motor and a wireless power transfer receiving apparatus,

wherein the respirator is configured such that when the exhaled airflow and the fresh airflow flow into the first chamber and are then filtered by the filter unit, the filtered airflow flows into the second chamber and is sterilized by the light panel, and
wherein the rechargeable battery provides power for the electric motor, and the fan unit is driven by the electric motor.

2. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the filter unit is selected from a graphene filter, a bismuth vanadate (BiVO 4 ) filter, or a high efficiency particulate air (HEPA) filter containing at least one ultraviolet-A (UV-A) LEDs and titanium dioxide (TiO 2 ) nanoparticles-coated fiber.

3. The wireless rechargeable and portable anti-microbial respirator of claim 2 , wherein the graphene filter further comprising:
two layers of laser induced graphene (LIG) membranes, wherein a first of the two layers of LIG membranes serves as a positive electrode and a second of the two layers of LIG membranes serves as a negative electrode; and
a porous dielectric layer positioned between the two layers of LIG membranes serving as an intermediate layer,

wherein the rechargeable battery is connected to the two layers of LIG membranes with one or more wires,
wherein the two layers of LIG membranes and the porous dielectric layer form a parallel plate capacitor, and the rechargeable battery provides the parallel plate capacitor with voltage.

4. The wireless rechargeable and portable anti-microbial respirator of claim 3 , wherein the voltage in the parallel plate capacitor is in range of 0.5V to 3V.

5. The wireless rechargeable and portable anti-microbial respirator of claim 2 , wherein the BiVO 4 filter further comprises at least five filtering layers, wherein the at least five filtering layers include a non-woven layer, an anti-adhesion layer, an activated carbon layer, a molten spray layer and a filter layer, wherein the BiVO 4 filter is coupled with a silver (Ag) or copper (Cu) nanoparticle-including layer.

6. The wireless rechargeable and portable anti-microbial respirator of claim 2 , wherein the at least one UV-A LEDs has a UV light wavelength in a range of 315 nm to 400 nm.

7. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the light panel further comprises one or more cluster LEDs and/or one or more wires connected to the rechargeable battery.

8. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the shape of the filtration system is a cylinder with a diameter in a range of 50-150 mm and a height in a range of 50-100 mm.

9. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the fan unit comprises a fan with a self-adjusting flowrate module.

10. The wireless rechargeable and portable anti-microbial respirator of claim 9 , wherein the self-adjusting flowrate module comprises a pressure sensor and a CPU for calculating the required current of the electric motor, and the electric motor and the fan utilize the self-adjusting flowrate module to automatically adjust the rotating speed of the fan based on the pressure within the filtration system.

11. The wireless rechargeable and portable anti-microbial respirator of claim 10 , wherein the rechargeable battery provides voltage for two layers of LIG membranes and the at least one UV-A LEDs.

12. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the material used for the wireless power transfer receiving apparatus comprises one or more copper coils.

13. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the face-piece covers a mouth and nose of a user.

14. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the material of the face-piece is a silicone material.

15. The wireless rechargeable and portable anti-microbial respirator of claim 1 , further comprising at least one one-way valve positioned at the junction between the face-piece and the first end of the flexible outlet tube and/or the first end of the flexible intake tube to prevent exhaled air with a higher carbon dioxide content from entering the face-piece again, and to prevent exhaled air from flowing directly into the ambient air.

16. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the surfaces of both the flexible outlet tube and the flexible intake tube comprise graphene-based materials, bismuth vanadate (BiVO 4 ) coupled with silver (Ag) or copper (Cu) nanoparticles, or TiO 2 -based materials.

17. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein the anti-microbial respirator is an anti-virus respirator or an anti-bacterial respirator.

18. The wireless rechargeable and portable anti-microbial respirator of claim 1 , wherein both the flexible outlet tube and the flexible intake tube have an inner diameter of 12 mm and an outer diameter of 15 mm.

19. The wireless rechargeable and portable anti-microbial respirator of claim 18 , wherein the flexible outlet tube and the flexible intake tube are further integrated into a sleeve.

Assignees

• Univ City Hong Kong

Inventors

• Wang Steven
• Ye Ruquan
• Deng Wei

Classifications

• A62B18/006

  with pumps for forced ventilation (A62B18/045 takes precedence) · CPC title

• B03C2201/26

  for use in medical or biological applications · CPC title

• B01D2255/20707

  Titanium · CPC title

• B01D2255/104

  Silver · CPC title

• B01D2255/20761

  Copper · CPC title