US 12,302,964 B2
Personal protection system and method
Jacob Herbert, Irvine, CA (US); Bradford H. Hack, Irvine, CA (US); Lawrence J. Green, Irvine, CA (US); Dina El Sherif, Irvine, CA (US); Christopher Simbulan, Irvine, CA (US); H. Nicholas Herbert, Irvine, CA (US); and Carlo C. Memita, Irvine, CA (US)
Assigned to Pabban Development, Inc., Irvine, CA (US)
Appl. No. 18/028,450
Filed by PABBAN DEVELOPMENT, INC., Irvine, CA (US)
PCT Filed Oct. 27, 2022, PCT No. PCT/US2022/048064
§ 371(c)(1), (2) Date Mar. 24, 2023,
PCT Pub. No. WO2023/076498, PCT Pub. Date May 4, 2023.
Claims priority of provisional application 63/272,633, filed on Oct. 27, 2021.
Prior Publication US 2023/0292857 A1, Sep. 21, 2023
Int. Cl. A41D 13/11 (2006.01); A62B 7/10 (2006.01); A62B 18/04 (2006.01); A62B 18/08 (2006.01)
CPC A41D 13/1153 (2013.01) [A41D 13/1184 (2013.01); A62B 7/10 (2013.01); A62B 18/045 (2013.01); A62B 18/084 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A protective headgear system comprising:
a cover configured to cover the head of a user, the cover comprising:
a substantially transparent facial shield having a perimeter; and
a sheet sealingly coupled to the facial shield around its perimeter, wherein the sheet comprises a substantially anterior portion comprising a first sheet material configured to act as a substantial barrier to the passage of air, the sheet further comprising a substantially posterior portion comprising a second sheet material configured to filter contaminants from air, the sheet further comprising one or more seams between the first sheet material and the second sheet material;
a lower barrier configured to significantly create a flow barrier between the cover and the neck of the user for providing an interior volume within the cover, significantly isolated from external air;
a fan configured to draw some of the external air into the interior volume of the cover;
a filter coupled to the cover and configured to filter the external air as it is drawn into the interior volume by the fan; and
one or more channels spaced downstream from the fan within the cover, the one or more channels comprising one or more channel outlets oriented toward the second sheet material to direct internal air without any additional fan, including at least some exhaled air from the user, toward the second sheet material of the posterior portion of the sheet.