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:
Jan. 23, 2018
Filed:
Oct. 10, 2013
Applicant:
Miratech Group, Llc, Tulsa, OK (US);
Inventors:
David Alan Nelson, Elgin, TX (US);
Adam Merillat, Tulsa, OK (US);
Casey Don Tevebaugh, Claremore, OK (US);
Francis E. Reder, Tulsa, OK (US);
Assignee:
Miratech Group, LLC, Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 1/06 (2006.01); F01N 1/00 (2006.01);
U.S. Cl.
CPC ...
F01N 1/00 (2013.01);
Abstract
An apparatus and method for attenuating sound from an engine exhaust. The relative lengths of the expansion chambers and other components within the apparatus provide a quadruple tuning effect which attenuates sound over a wide frequency range. Attenuation at higher frequencies is also increased and extended by the use of acoustically lined internal baffle tubes inside the apparatus housing.