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:
Jun. 19, 2001
Filed:
Mar. 11, 1998
Applicant:
Inventors:
Oliver Kovar, Filderstadt, DE;
Thomas Nording, Esslingen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 7/10 ; B21D 5/116 ;
U.S. Cl.
CPC ...
F01N 7/10 ; B21D 5/116 ;
Abstract
An air gap-insulated exhaust manifold with a double-walled design provided only in the area of the collection pipe, while only a single-walled design is provided in the area of the individual pipes. The outer pipe includes two half shells, while the gas-carrying inner pipe is manufactured especially from one or more partial sections according to the inner high-pressure process.