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. 11, 2011
Filed:
Nov. 30, 2006
Yossi Barath, Herzelia, IL;
Micahel Surov, Tel Aviv, IL;
Alon Slapak, St. Mazor, IL;
Itai Michael Itnati, Ramat Gan, IL;
Yossi Barath, Herzelia, IL;
Micahel Surov, Tel Aviv, IL;
Alon Slapak, St. Mazor, IL;
Itai Michael Itnati, Ramat Gan, IL;
Silentium Ltd., Rehovot, IL;
Abstract
An Active Muffler in the form of a duct having two open ends for conveying air from a within a cabinet to outside the cabinet. A fan or blower is incorporated in the duct. An Automatic Noise Control (ANC) unit is associated with the duct, and at least one microphone and at least one speaker are incorporated in to the duct for noise-reduction. An outer portion of the duct may be sound-absorbing material. the ANC unit may cause noise to be shifted to a frequency that can be absorbed by the sound-absorbing material.