Patent · US Active

Filter media with irregular structure

US12036496B2 · kind B2 · utility

0Cited by

52References

17Claims

0Family size

Assignee

Hollingsworth & Vose Company · US

Inventors

Bruce Smith · Copper Hill, US
Maxim Silin · Hudson, US
David T. Healey · Bellingham, US

Key dates

Filing date	Jul 26, 2022
Grant date	Jul 16, 2024
Priority date	—
Expiry date	Aug 11, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2239/1275
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Articles and methods relating to filter media are generally provided. In some embodiments, a filter media has an irregular surface structure. For instance, the filter media may comprise a plurality of peaks that are irregular in one or more ways. A ratio of a peak height standard deviation to an average peak height may be greater than or equal to 0.05, and/or a ratio of a peak spacing standard deviation to an average peak spacing may be greater than or equal to 0.08. In some embodiments, a filter media comprises a non-woven fiber web having a layer thickness of greater than 0.3 mm and/or a stiffness of less than or equal to 100 mg.

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