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:
Aug. 03, 2010
Filed:
Nov. 30, 2005
Frederick B. Hill, Jr., Clarkston, MI (US);
Joseph G. Salmonowicz, Jr., Lapeer, MI (US);
Brad M. Schneemann, Grand Blanc, MI (US);
John C. Studabaker, Grand Blanc, MI (US);
Frederick B. Hill, Jr., Clarkston, MI (US);
Joseph G. Salmonowicz, Jr., Lapeer, MI (US);
Brad M. Schneemann, Grand Blanc, MI (US);
John C. Studabaker, Grand Blanc, MI (US);
Benteler Automotive Corporation, Auburn Hills, MI (US);
Abstract
An exhaust gas treatment device for internal combustion engines and the like includes inlet and outlet end caps, two catalyst substrates, and a two-piece housing. A first, cylindrically-shaped housing member has a hollow interior in which one of the substrates is retained, a first end sealingly connected with the inlet end cap, and an opposite second end with a radially reduced section. A second cylindrically-shaped housing member has a hollow interior in which the other one of the substrates is retained, a first end sealingly connected with the outlet end cap, and an opposite second end with a radially enlarged section sized to receive therein the second end of the first housing member, whereby the reduced section of the first housing member and the enlarge section of the second housing member are spaced radially apart a predetermined distance to define an annularly-shaped space or gap which thermally insulates the associated portion of the exhaust gas treatment device.