Integral valve effect respirator

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United States of America Patent

PATENT NO 8978655
APP PUB NO 20120279507A1
SERIAL NO

13547004

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A respirator comprises: a nose and mouth covering porous filter body and a flexible restraining device arranged so that the body may pivot in its vertical plane of symmetry about its nose contact portion, and the restraining device attaches to the body at positions where its restraining force imparts torque in the body about said nose contact portion so that the chin contact portion of said body bears against the user's chin. In use, the resulting chin contact force may be less than the opposing user expiration force on the filter body, so the periphery of the chin contact portion may separate from the user's chin during expiration to benefit user comfort and mitigate eyeglass condensation.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duke, John Hincks Providence, US 12 52
Goel, Ritu Lincoln, US 5 20

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