Sleeve-fit respirator cartridge
US-9510626-B2 · Dec 6, 2016 · US
Respirator having foam shaping layer with recessed regions surrounding air passageways
US9027554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9027554-B2 |
| Application number | US-201113311603-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2011 |
| Priority date | Dec 6, 2011 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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Abstract
Official abstract text for this publication.
A filtering face mask 10 that has a harness 14 and a mask body 12 . The mask body 12 includes a filtering structure 18 and a cup-shaped shaping layer 20 where the latter comprises a closed cell foam layer that has a plurality of fluid permeable openings 22 located in it. The openings 22 are surrounded by recessed regions 31 . The filtering structure 18 does not make substantial contact with the shaping layer 20 at the recessed regions. The shaping layer 20 makes contact with the wearer's face at the mask body perimeter 19 when the respirator is being worn. The use of a foam shaping layer that has openings surrounded by recessed regions provides sufficient structural integrity or stiffness to prevent mask body collapse during respirator use while also exhibiting a low pressure drop and rapid fluid distribution of air within the mask to allow for low breathing resistance and extended wearer comfort.
First claim
Opening claim text (preview).
What is claimed is: 1. A filtering face-piece respirator that comprises: a harness; and a mask body that comprises: a filtering structure; and a cup-shaped shaping layer that comprises a closed cell foam layer that has a plurality of air permeable openings located therein and a plurality of recessed regions formed in an outer surface of the cup-shaped shaping layer, wherein each air permeable opening of the plurality of air permeable openings comprises a first end at the oute…
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Classifications
Human Necessities · mapped topic
- A62B23/025Primary
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9027554B2 cover?
- A filtering face mask 10 that has a harness 14 and a mask body 12 . The mask body 12 includes a filtering structure 18 and a cup-shaped shaping layer 20 where the latter comprises a closed cell foam layer that has a plurality of fluid permeable openings 22 located in it. The openings 22 are surrounded by recessed regions 31 . The filtering structure 18 does not make substantia…
- Who is the assignee on this patent?
- Lee Jin-Ho, Moon Jungchul, Park Kangsoo, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification A62B23/025. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).