Patent · US Active

Method of installing a longitudinally offset multi-layer mat in an exhaust gas aftertreatment or acoustic device

US8505203B2 · kind B2 · utility

2Cited by

5References

8Claims

0Family size

Assignee

Tenneco Automotive Operating Company LLC · US

Inventors

Steven Freis · Ann Arbor, US
Ruth Latham · Ann Arbor, US
Stephen Myers · Owosso, US

Key dates

Filing date	Sep 30, 2010
Grant date	Aug 13, 2013
Priority date	—
Expiry date	Mar 5, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49908
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method is provided for installing a multi-layer mat (24) in an exhaust gas aftertreatment or acoustic device. The method includes the steps of wrapping the mat (24) around an inner surface of the device along the same plane for at least a complete wrap around the inner surface; subsequently wrapping the mat (24) around the already completed wrap such that each of the successive wraps of the mat (24) are offset a constant distance from the plane of the previous wrap; a final wrap of the mat (24) wherein the mat is wrapped along a final plane for at least a complete wrap around the catalyst; and installing the mat (24) in the device (18) after the wrapping steps.

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