Patent · US Active

Filter media including a waved filtration layer

US10561972B2 · kind B2 · utility

3Cited by

101References

34Claims

0Family size

Assignee

Hollingsworth & Vose Company · US

Inventors

Bruce Smith · Copper Hill, US
David T. Healey · Bellingham, US
Ingrid Rückert · Hatzfeld, DE
Siqiang Zhu · Christiansburg, US

Key dates

Filing date	Mar 22, 2017
Grant date	Feb 18, 2020
Priority date	—
Expiry date	Aug 8, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2275/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Filter media including a waved filtration layer are described herein. The filtration layer may be held in a waved configuration by a support layer. In some cases, the filtration layer may have a combination of characteristics (e.g., mean flow pore size, basis weight, amongst others) that can lead to enhanced filtration performance (e.g., reduced air permeability decrease), in particular, in high humidity environments. The filter media may be used to form a variety of filter elements for use in various applications. In some embodiments, at least a surface of the filtration layer is hydrophilic.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.