Filtering Face-Piece Respirator Having Nose Notch
US-2016287916-A1 · Oct 6, 2016 · US
Reinforced filter media
US10130833B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10130833-B2 |
| Application number | US-201013508470-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2010 |
| Priority date | Nov 18, 2009 |
| Publication date | Nov 20, 2018 |
| Grant date | Nov 20, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Reinforced filter media are prepared by adhering discrete, non-intersecting strands of thermoplastic or thermoset materials to the filter media web. The filter media may be a fabric, a nonwoven web or a filtering foam. The reinforced filter media can be used to prepare respirators, including flat-fold respirators or molded respirators.
First claim
Opening claim text (preview).
What is claimed is: 1. A respirator comprising: a reinforced filter media, the reinforced filter media comprising: a polymeric web; and discrete, non-intersecting strands of a thermoset polymeric reinforcing material attached to the web, wherein at least one strand runs along at least one of substantially a full maximum width of the respirator or substantially a full maximum length of the respirator, wherein the discrete, non-intersecting strands of reinforcing material are in a generally parallel, spaced apart relationship and are not interconnected, wherein the at least one strand is bounded by at least one edge of the polymeric web. 2. The respirator of claim 1 , wherein the polymeric web comprises a fabric, a nonwoven web, or a filtering foam. 3. The respirator of claim 1 , wherein the reinforcing material comprises a polyolefin; a halogenated polyolefin; a copolyester-ether elastomer of cyclohexane dimethanol, tetramethylene glycol, and terephthalic acid; a copolyester elastomer; a polyether; a polyamide; a polyether block polyamide; a polyurethane; a copolymer of ethylene, or ethylene and propylene, with acrylics; an ionomer; an acrylonitrile polymer; an acrylic copolymer; a chemically-modified polyolefin; or a thermoplastic elastomer block copolymer; or blends or combinations thereof. 4. The respirator of claim 1 , wherein the discrete, non-intersecting strands of reinforcing material comprises a core-sheath construction. 5. The respirator of claim 1 , further comprising at least one additional web layer. 6. The respirator of claim 1 , wherein the respirator is a flat-fold respirator. 7. The respirator of claim 1 , wherein the respirator is a molded cup-shaped respirator.
Assignees
Inventors
Classifications
of synthetic origin · CPC title
characterised by their shape · CPC title
of organic material · CPC title
obtained by moulding · CPC title
- A62B23/025Primary
the filter having substantially the shape of a mask (surgical face masks A41D13/11) · CPC title
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- What does patent US10130833B2 cover?
- Reinforced filter media are prepared by adhering discrete, non-intersecting strands of thermoplastic or thermoset materials to the filter media web. The filter media may be a fabric, a nonwoven web or a filtering foam. The reinforced filter media can be used to prepare respirators, including flat-fold respirators or molded respirators.
- Who is the assignee on this patent?
- Angadjivand Seyed A, Jones Marvin E, Martin Philip G, 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 Nov 20 2018 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).