Patent · US Active

Conformal split planar flow air purifying filter

US8979985B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Scott Technologies, Inc. · US

Inventors

Frank Ding · Milpitas, US
Edward Powers Simmonds · Indian Trail, US
Michael Parham · Matthews, US

Key dates

Filing date	Jul 18, 2013
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Jul 18, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2259/4541
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A conformal filter is disclosed having a plurality of sorbent beds oriented perpendicular to an inner side surface of the filter which conforms to an adjacent surface, such as a wearer's face when attached to a respirator. The inner side of the filter may approximate the curved shape of an interfacing surface. Because the sorbent beds are oriented perpendicular to the inner side surface, a conformal configuration can be achieved without bending the sorbent beds and while keeping constant bed residence time throughout the entire cross-sectional area of the air flow, thus enforcing even air distribution. Reduced bed depth is also achieved through this configuration which consequently reduces the overall pressure drop through the filter. Other embodiments are described and claimed.

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