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:
Jul. 18, 1989
Filed:
Oct. 18, 1988
Jon W Harwood, Toledo, OH (US);
Wayne A Karlgaard, Dyersburg, TN (US);
AP Parts Manufacturing Company, Toledo, OH (US);
Abstract
Stamped formed mufflers and a process for forming stamped formed mufflers is provided. The mufflers are stamp formed from master dies having a plurality of die subsets removably mounted therein. At least one subset may include several die inserts removably mounted therein. The subset and insert dies are selected to effect the acoustical performance of the resulting muffler. Thus, a system of mufflers may be formed having generally the same pattern of tubes therein. However, selected mufflers in the system will have portions thereof which are different from other mufflers in the system, depending upon the particular die subsets selected for mounting in the master die, and the particular die inserts selected for mounting in the subsets.