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:
Nov. 13, 2007
Filed:
Dec. 10, 2004
Applicants:
Norbert Kreft, Meerbusch, DE;
William Martin Silvis, Ann Arbor, MI (US);
Inventors:
Norbert Kreft, Meerbusch, DE;
William Martin Silvis, Ann Arbor, MI (US);
Assignee:
AVL North America Inc., Plymouth, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An exhaust flow measurement system uses a noise attenuation device to cancel exhaust gas pulsations at the harmonic frequency of a flow rate measurement transducer.