IP Library Granted Patent US 9,511,162
Granted Patent B2
US 9,511,162 · App. 14/543,554 · Granted Dec 6, 2016

Room fogging disinfection system and method

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Quick Facts
Patent No.
US 9,511,162
App. No.
14/543,554
Granted
Dec 6, 2016
Kind
B2
Abstract

A method for disinfecting a room includes generating a fog from an enclosure having first and second air inlets and an air dispersion outlet including a fan configured to draw air into the enclosure through first and second air inlets and to force air out of the enclosure. A filter assembly is disposed relative to the second air inlet such that air that flows between the exterior and interior of the enclosure through the second air inlet passes through the filter assembly. The method further includes actuating an air intake assembly, activating the fan, actuating the air intake control assembly, and deactivating the fan.

Claims (47)

1. A method for disinfecting a room, the method comprising:

generating a disinfecting fog from an enclosure including a first air inlet, a second air inlet, and an air dispersion outlet including a fan configured to draw air into the enclosure through the first and second air inlets and to force air out of the enclosure, the enclosure further including a filter assembly disposed relative to the second air inlet such that air that flows between the exterior and interior of the enclosure through the second air inlet passes through the filter assembly;

actuating an air intake control assembly to open the first air inlet;

activating the fan to draw air through the open first air inlet and out of the air dispersion outlet to disperse the fog into the room;

actuating the air intake control assembly to close the first air inlet to draw the fog from the room through the second air inlet and the filter assembly;

actuating the air intake control assembly to open the first air inlet;

dispensing an antimicrobial coating substance relative to the fan to disperse the antimicrobial coating substance into the room; and

deactivating the fan after drawing fog from the room through the second air inlet and after dispersing the antimicrobial coating substance into the room.

2. The method of claim 1 , wherein dispensing the antimicrobial coating substance includes dispensing room temperature antimicrobial coating substance.

3. The method of claim 1 , wherein actuating the air intake control assembly to open the first air inlet comprises:

opening a plurality of louvers to permit air flow between an exterior of the enclosure and an interior of the enclosure via the first air inlet.

4. The method of claim 1 , wherein actuating the air intake control assembly to close the first air inlet comprises:

closing a plurality of louvers to prevent air flow between an exterior of the enclosure and an interior of the enclosure via the first air inlet such that air flows through the second air inlet.

5. The method of claim 1 , wherein generating the disinfecting fog comprises:

drawing a disinfecting substance from a chemical reservoir; and

forcing the disinfecting substance through an atomizing nozzle.

6. The method of claim 1 , and further comprising:

sensing one or more ambient conditions in the room.

7. The method of claim 6 , wherein the sensing step comprises sensing one or more of heat sources, humidity, motion, and temperature in the room.

8. The method of claim 6 , and further comprising:

altering conditions in the room based on the sensed ambient conditions.

9. The method of claim 8 , and further comprising:

delaying generation of the disinfecting fog until the environmental control system alters the ambient conditions of the room to threshold ambient conditions.

10. The method of claim 1 , wherein the antimicrobial coating substance is dispersed into the room after drawing the fog from the room through the second air inlet.

11. The method of claim 1 , wherein dispensing the antimicrobial coating substance comprises dispersing the antimicrobial coating substance as a fog into the room.

12. A method for disinfecting a room, the method comprising:

generating a disinfecting fog from an enclosure including a first air inlet, a second air inlet, and an air dispersion outlet including a fan configured to draw air into the enclosure through the first and second air inlets and to force air out of the enclosure, the enclosure further including a filter assembly disposed relative to the second air inlet such that air that flows between the exterior and interior of the enclosure through the second air inlet passes through the filter assembly, and a chemical dispersion assembly configured to generate a disinfecting fog relative to the air dispersion outlet via a chemical reservoir configured to retain a disinfecting substance, a first atomizing nozzle configured to transform the disinfecting substance into the disinfecting fog, a second atomizing nozzle, and a third atomizing nozzle, wherein the first, second and third atomizing nozzles are spaced on different sides of the air dispersion outlet external of the enclosure;

actuating an air intake control assembly to open the first air inlet;

activating the fan to draw air through the open first air inlet and out of the air dispersion outlet to disperse the fog into the room;

actuating the air intake control assembly to close the first air inlet to draw the fog from the room through the second air inlet and the filter assembly; and

deactivating the fan after drawing fog from the room through the second air inlet.

13. The method of claim 12 , wherein prior to deactivating the fan, the method further comprises:

actuating the air intake control assembly to open the first air inlet; and

dispensing an antimicrobial coating substance relative to the fan to disperse the antimicrobial coating substance into the room.

14. The method of claim 12 , wherein dispensing the antimicrobial coating substance includes dispensing room temperature antimicrobial coating substance.

15. The method of claim 12 , wherein actuating the air intake control assembly to open the first air inlet comprises:

opening a plurality of louvers to permit air flow between an exterior of the enclosure and an interior of the enclosure via the first air inlet.

16. The method of claim 12 , wherein actuating the air intake control assembly to close the first air inlet comprises:

closing a plurality of louvers to prevent air flow between an exterior of the enclosure and an interior of the enclosure via the first air inlet such that air flows through the second air inlet.

17. The method of claim 12 , wherein generating the disinfecting fog comprises:

drawing a disinfecting substance from a chemical reservoir; and

forcing the disinfecting substance through an atomizing nozzle.

18. The method of claim 12 , and further comprising:

sensing one or more ambient conditions in the room.

19. The method of claim 18 , wherein the sensing step comprises sensing one or more of heat sources, humidity, motion, and temperature in the room.

20. The method of claim 18 , and further comprising:

altering conditions in the room based on the sensed ambient conditions.

Assignments (5)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jun 3, 2021
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: MAR COR PURIFICATION, INC.
Reel/Frame 056550/0278 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jun 28, 2018
From: MAR COR PURIFICATION, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 046452/0432 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2015
From: MEDIVATORS INC.
To: MAR COR PURIFICATION, INC.
Reel/Frame 036967/0942 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 21, 2014
From: SCHWARTZ, MASON; GENTLE, THOMAS M.; PETERSEN, MICHAEL P.
To: MINNTECH CORPORATION
Reel/Frame 034233/0769 →
CHANGE OF NAME Recorded Nov 21, 2014
From: MINNTECH CORPORATION
To: MEDIVATORS INC.
Reel/Frame 034233/0850 →