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:
Sep. 12, 2006
Filed:
Mar. 21, 2001
Applicant:
Svend Frederiksen, Holte, DK;
Inventor:
Svend Frederiksen, Holte, DK;
Assignee:
Silentor Holding A/S, Hedenhusene, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A silencer for silencing and also for filtering exhaust gases, contains at least one acoustic resonator chamber () (Helmholtz frequency), at least one porous body () the porous body () occupying at least part of the chamber and at least one connecting passage () for leading gas from each one of the acoustic chamber wherein the connecting passage () extend along the outher surface of the porous body, so as to lead along a helical flow path ().