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:
Mar. 25, 1986
Filed:
Jun. 18, 1984
David Vizard, Cheltenham, GB;
Shelburne Incorporated, Grand Terrace, CA (US);
Abstract
An exhaust muffler comprises a closed chamber, an inlet pipe leading into the chamber, an outlet pipe leading from the chamber, two spaced bulkheads dividing the chamber into first and second buffer compartments separated by an intermediate compartment containing a glass fibre pack, three pass tubes extending through the bulkheads and across the intermediate compartment, two of the pass tubes forming continuations of the inlet and outlet pipes respectively and having flared open ends in the buffer compartments respectively, and a parabolic noise reflector located opposite the open end of said two pass tubes in such manner as to reflect down the pass tubes a proportion of the noise generated by gases flowing along the pass tubes.