Multi-layered filter media

US10080985B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10080985-B2
Application numberUS-201514841460-A
CountryUS
Kind codeB2
Filing dateAug 31, 2015
Priority dateNov 13, 2012
Publication dateSep 25, 2018
Grant dateSep 25, 2018

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By designing the layers to have separate functions, each layer may be optimized to enhance its function without negatively impacting the performance of another layer of the media.

First claim

Opening claim text (preview).

What is claimed is: 1. A filter media, comprising: a first layer comprising a first plurality of fibers, wherein the first layer has a first air permeability and a first mean flow pore size; a second layer comprising a second plurality of fibers, wherein the second plurality of fibers comprises fibrillated fibers, and wherein the second layer has a second air permeability and a second mean flow pore size; and a third layer comprising a third plurality of fibers, wherein the th…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10080985B2 cover?
Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By design…
Who is the assignee on this patent?
Hollingsworth & Vose Co
What technology area does this patent fall under?
Primary CPC classification B01D39/18. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Sep 25 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).