Patent · US Active

Air filter arrangement

US10821385B2 · kind B2 · utility

0Cited by

6References

8Claims

0Family size

Assignee

Cummins Filtration IP, Inc. · US

Inventors

Scott W. Schwartz · Cottage Grove, US
Peter K. Herman · Cookeville, US
Jeremiah Cupery · Madison, US
Mark A. Terres · Stoughton, US

Key dates

Filing date	Aug 11, 2016
Grant date	Nov 3, 2020
Priority date	—
Expiry date	May 28, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/60
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Filter housings that have housing wall surface irregularities are described. The surface irregularities are positioned on the inner walls of the housings and/or axial ends of the housing walls. The surface irregularities may be, for example, grooves, ribs, bumps, and the like. The surface irregularities provide an engine integrity protection (EIP) feature by preventing non-approved replacement filter elements from forming seals against alternative sealing surfaces of the housing wall inner surfaces or axial ends.

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