Patent · US Active

Air filter cartridge

US9446340B2 · kind B2 · utility

1Cited by

18References

4Claims

0Family size

Assignee

Donaldson Company, Inc. · US

Inventors

Brian David Babcock · Columbus Hill, US
Heather M. Tate · Shakopee, US
Mark Belcher · New Brighton, US
Brain Zauner · Lakeville, US
Kyle W. Undesser · Shakopee, US
Douglas A. Wersal · Champlin, US

Key dates

Filing date	Nov 6, 2009
Grant date	Sep 20, 2016
Priority date	—
Expiry date	Nov 21, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Filters capable of dissipating static charges. One example includes a filter media pack comprising fluted media secured to facing media; the fluted media having cellulose fibers; and the fluted media including an amount of carbon black sufficient to impart a static charge dissipative property thereto. One example includes an air filter cartridge having a filter media pack comprising fluted media secured to facing media; the fluted media comprising cellulose fibers; the fluted media having at least one side coated with a static charge dissipative amount of a metallic coating. These filters are useable in, for example, dust collectors.

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