Patent · US Active

Particulate filters and methods of filtering particulate matter

US8444752B2 · kind B2 · utility

14Cited by

11References

23Claims

0Family size

Assignee

CORNING INCORPORATED · US

Inventors

Douglas Munroe Beall · Corning, US
Achim Karl-Erich Heibel · Corning, US
Pushkar Tandon · Corning, US

Key dates

Filing date	Oct 22, 2009
Grant date	May 21, 2013
Priority date	—
Expiry date	Aug 14, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D46/2498
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A particulate filter may comprise an inlet end, an outlet end, and a plurality of parallel channels disposed and configured to flow fluid from the inlet end to the outlet end, the channels being defined by a plurality of porous walls configured to trap particulate matter. The particulate filter may define at least one filtration region including a first group of channels and at least one bypass region including a second group of channels, wherein at least some of the channels in the first group of channels are plugged at an end thereof, wherein the channels in the second group of channels are unplugged, and wherein greater than or equal to about 70% of the plurality of parallel channels are plugged at an end thereof.

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