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. 09, 1994
Filed:
Mar. 16, 1992
Herbert Zirkel, Aalen-Wasseralfingen, DE;
Schwaebische Huettenwerke GmbH, Wasseralfingen, DE;
Abstract
An exhaust gas filter and/or a catalytic converter for the removal of harmful constituents from the exhaust gas of an internal combustion engine is provided with a feed duct (6) to a filter or converter unit (1) made from metal materials, which form a unit penetrated by cavities, through which the exhaust gas is conveyed, from compression-moulded wires or fibers as a tangled mass, braiding, knitted fabric or woven cloth or in powder, granular or chip form, and with a delivery duct (7) for the exhaust gas purified by the filter or converter unit (1). The filter or converter unit (1) is also constructed as a heat exchanger unit for the exhaust gas to be cleaned.