IP Library › Granted Patent US 12,203,841
Granted Patent B1
US 12,203,841 · App. 16/904,864 · Granted Jan 21, 2025

Portable test system for uniform chemical concentration testing of personal protection products and method of use

Inventor: Steven A Yurechko (Port Deposit, MD)
Assignee: The United States of America as Represented by the Secretary of the Army
G01N17/002B01L1/025B01L1/52E04H15/20G01M3/02E04H2015/201E04H2015/206
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Quick Facts
Patent No.
US 12,203,841
App. No.
16/904,864
Granted
Jan 21, 2025
Kind
B1
Abstract

An apparatus for testing personal protection equipment or devices comprising an enclosure body having an air-inflatable support structure that receives an air-transferable chemical and air to maintain a substantially rigid structural integrity; a nozzle connected to the air-inflatable support structure, wherein the nozzle releases air and the air-transferable chemical from the air-inflatable support structure into the interior of the enclosure body for a selected period of time as a concentration of the air-transferable chemical in the interior of the enclosure body is at a steady state of uniformity; and a panel integrated into the enclosure body that passively releases air from the enclosure body.

Claims (34)

1. An apparatus for testing protective devices, comprising:

an enclosure body comprising an air-inflatable support structure that receives an air-transferable chemical and air within an interior of the air-inflatable support structure to inflate the air-inflatable support structure to support and maintain a substantially rigid structural integrity of the enclosure body, the enclosure body having an enclosed interior when the air-inflatable support structure is inflated;

a nozzle connected to the air-inflatable support structure, wherein the nozzle releases the air and the air-transferable chemical from the interior of the air-inflatable support structure into the interior of the enclosure body for a selected period of time as a concentration of the air-transferable chemical in the interior of the enclosure body is at a steady state of uniformity; and

a panel integrated into the enclosure body that passively releases air and air-transferable chemical from the interior of the enclosure body.

2. The apparatus of claim 1 , wherein the air-transferable chemical comprises an aerosol.

3. The apparatus of claim 1 , wherein the air-transferable chemical comprises a vapor.

4. The apparatus of claim 1 , wherein the nozzle directs the air-transferable chemical at a selected location in the enclosure body.

5. The apparatus of claim 1 , wherein the enclosure body is portable.

6. The apparatus of claim 1 , wherein said air-inflatable support structure comprises elongated air-inflatable beams.

7. A test chamber system, comprising:

an enclosure body comprising an air-inflatable support structure;

a device for supplying an air-transferable chemical;

a fan or blower operatively connected to the air-inflatable support structure and the device, wherein the fan or blower transfers the air-transferable chemical and air into an interior of the air-inflatable support structure;

at least one nozzle connected to the air-inflatable support structure, wherein the at least one nozzle opens causing the air-transferable chemical and the air to exit the interior of the air-inflatable support structure and enter into an interior of the enclosure body;

a sensor in the enclosure body that detects whether a concentration of the air-transferable chemical in the enclosure body is at a steady state of uniformity; and

a panel integrated into the enclosure body that releases air from the interior of the enclosure body.

8. The test chamber system of claim 7 , wherein the air in the interior of the air-inflatable support structure retains an inflation of the air-inflatable support structure that permits the enclosure body to retain structural rigidity.

9. The test chamber system of claim 7 , wherein the panel comprises a plurality of holes.

10. The test chamber system of claim 7 , wherein the panel comprises a covering that controls an amount of air released from the interior of the enclosure body.

11. The test chamber system of claim 7 , wherein the panel directs a portion of the air and a portion of the air-transferable chemical out of the interior of the enclosure body.

12. The test chamber system of claim 7 , wherein the panel comprises a carbon laced mesh panel.

13. A method for testing protective devices, comprising:

directing air and an air-transferable chemical into an interior of an air-inflatable support structure of an enclosure body, the enclosure body having an interior;

releasing some of the air and the air-transferable chemical from the interior of the air-inflatable support structure into the interior of the enclosure body;

selectively releasing air from the interior of the enclosure body;

determining whether a concentration of the air-transferable chemical in the interior of the enclosure body is at a steady state of uniformity; and

performing a diagnostic test procedure on a protective device in the interior of the enclosure body while the concentration of the air-transferable chemical in the enclosure body is at a steady state of uniformity.

14. The method of claim 13 , wherein the air and the air-transferable chemical directed into the interior of the air-inflatable support structure is at a pressure and volume of at least a minimum level necessary to retain a structural rigidity of the air-inflatable support structure.

15. The method of claim 13 , further comprising mixing the air-transferable chemical and the air to achieve the steady state of uniformity of concentration of the air transferable chemical in the air.

16. The method of claim 15 , wherein the mixing comprises mixing the air-transferable chemical and the air prior to directing the air-transferable chemical and air into the air-inflatable support structure.

17. The method of claim 15 , wherein the mixing comprises mixing the air-transferable chemical and the air in the interior of the air-inflatable support structure.

18. The method of claim 15 , wherein the mixing comprises mixing the air-transferable chemical and the air after releasing the air-transferable chemical and the air into the enclosure body.

19. The method of claim 13 , comprising controlling an amount of the air-transferable chemical directed into the air-inflatable support structure and released into the interior of the enclosure body.

20. The method of claim 13 , comprising selectively releasing enclosed air and the air-transferable chemical from the enclosure body.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2024
From: YURECHKO, STEVEN A., MR.
To: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
Reel/Frame 069569/0809 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2023
From: YURECHKO, STEVEN A
To: THE UNITED STATES OF AMERICA
Reel/Frame 064044/0354 →
References Cited (5)
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Huang. Machine Translation of CN-207486901-U. Published Jun. 2018. Accessed Jun. 2023. (Year: 2018). [cited by examiner]
Cited By (1)
US 1,077,117