The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 2015
Filed:
Oct. 20, 2011
Ruth Latham, Ann Arbor, MI (US);
William Alcini, Ann Arbor, MI (US);
Steven Freis, Ann Arbor, MI (US);
Ruth Latham, Ann Arbor, MI (US);
William Alcini, Ann Arbor, MI (US);
Steven Freis, Ann Arbor, MI (US);
Other;
Abstract
A method is provided for producing an exhaust gas aftertreatment or acoustic device () having a maximum operating temperature T. The method includes the steps of providing a blanket () of silica fiber or alumina insulation material having a weight percentage of SiOor AlOof greater than 65%; calcining the insulating material by heating the blanket () so that all of silica fiber insulation material is raised to a temperature T greater than T; and securing the blanket () on the device () after the calcining step. The blanket is encapsulated in a covering prior to the securing step, and before or after the calcining step, with the covering between the blanket and the device being a selected one of foil, wire mesh, or siliconized fiber glass.