Filtering face-piece respirator having strap-activated folded flange

A filtering face-piece respirator 10 that includes a mask body 12 and a harness 14. The mask body 12 has a major portion 28 that contains one or more layers of filter media 62 and that has first and second flanges 30a, 30b located on opposing sides of the major portion 28 at first and second lines o...

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Bibliographic Details
Main Author Duffy, Dean R
Format Patent
LanguageEnglish
Published 22.01.2019
Subjects
ACCESSORIES
HUMAN NECESSITIES
OUTERWEAR
PROTECTIVE GARMENTS
WEARING APPAREL
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Summary:A filtering face-piece respirator 10 that includes a mask body 12 and a harness 14. The mask body 12 has a major portion 28 that contains one or more layers of filter media 62 and that has first and second flanges 30a, 30b located on opposing sides of the major portion 28 at first and second lines of demarcation 36a, 36b. The first and second flanges 30a, 30b are capable of folding downwardly toward the major portion 28. The harness 14 includes one or more straps 26, 27 that each have first and second ends 29a, 29b. The first and second straps are secured to the first and second flanges 30a, 30b, such that there is a strap attachment point spaced at least one centimeter from the line of demarcation. The strap tension and spacing from the line of demarcation causes the flap to be folded downwardly into contact with the major portion to improve crush resistance.
Bibliography:Application Number: US201213727954