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Filter media construction using PTFE film and carbon web for HEPA efficiency and odor control

US9108130B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9108130-B2
Application numberUS-201013386252-A
CountryUS
Kind codeB2
Filing dateJul 22, 2010
Priority dateJul 22, 2009
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Disclosed herein, among other things, is an improved filter media construction that comprises multiple layers for improved odor control that can be used for vacuum cleaner air filtration cartridge applications. The filter media comprises anti-microbial ePTFE HEPA filter media to prevent mold growth. The filter media may also be used for air cleaner filtration, central air filtration for home and industrial buildings (HVAC), cleanrooms, and microelectronic devices. In an embodiment, the improved filter media construction comprises at least a PTFE layer, a bi-component layer, and a base layer. In an embodiment the PTFE layer comprises ePTFE. In an embodiment, the bi-component layer comprises non-woven polyethylene/polyethylene terephthalate (PE/PET). In yet another embodiment, the base layer comprises activated carbon. Other aspects and embodiments are provided herein.

First claim

Opening claim text (preview).

What is claimed is: 1. A multi-layer filter media construction comprising: a non-HEPA upstream media layer, a bi-component layer, and a bi-component layer, and a base media layer comprising activated carbon, wherein the upstream media layer is bonded to the base media layer by the bi-component layer, and wherein the multi-layer filter media construction is HEPA. 2. The filter media construction of claim 1 , the upstream media layer comprising PTFE.…

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Frequently asked questions

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What does patent US9108130B2 cover?
Disclosed herein, among other things, is an improved filter media construction that comprises multiple layers for improved odor control that can be used for vacuum cleaner air filtration cartridge applications. The filter media comprises anti-microbial ePTFE HEPA filter media to prevent mold growth. The filter media may also be used for air cleaner filtration, central air filtration for home an…
Who is the assignee on this patent?
Patel Kirit, Donaldson Co Inc
What technology area does this patent fall under?
Primary CPC classification B01D39/1607. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 18 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).