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:
Apr. 30, 1985
Filed:
Oct. 12, 1983
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
181252 ; 181272 ;
Abstract
A muffler installed on an exhaust system of an internal combustion engine, which dissipates thermal stresses which arise from differing thermal expansions of the members comprising the muffler. The muffler comprises an outer cylinder, a pair of inner pipes, slidable into each other, penetrating into the outer cylinder and having a number of small holes therein, separators fixed to the outer cylinder by outer flanges provided with notches, and to the inner pipes by inner flanges, and the spaces defined by the inner pipes, separators and outer cylinder being filled with a sound absorbing material such as glass wool.