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:
Nov. 04, 2014
Filed:
Dec. 12, 2011
Tobias Fuchs, Biberach a. d. Riss, DE;
Andreas Lannig, Kreuzwertheim, DE;
Ralf Rohrmueller, Faulbach, DE;
Sebastian Weidner, Oberndorf, DE;
Friedrich Zapf, Karlstadt, DE;
Tobias Fuchs, Biberach a. d. Riss, DE;
Andreas Lannig, Kreuzwertheim, DE;
Ralf Rohrmueller, Faulbach, DE;
Sebastian Weidner, Oberndorf, DE;
Friedrich Zapf, Karlstadt, DE;
Cummins Ltd., Staines, Middlesex, GB;
Abstract
An SCR exhaust gas aftertreatment device in which a urea-water solution is injected into an exhaust gas line is provided. At least one component of the device (e.g., a filter element) lies in an area of an internal space, and is bounded by an elastomer membrane that is embedded in a frost equalization foam. This prevents freezing damage even over a very long period of time and a large number of freezing cycles.