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:
Apr. 26, 2016
Filed:
Dec. 15, 2008
Ali Berker, St. Paul, MN (US);
Manish Jain, El Cerrito, CA (US);
Mark D. Purgett, Oakdale, MN (US);
Sanat Mohanty, Woodbury, MN (US);
Pierre A. Deymier, Tucson, AZ (US);
Bassam Merheb, Blaybel, LB;
Ali Berker, St. Paul, MN (US);
Manish Jain, El Cerrito, CA (US);
Mark D. Purgett, Oakdale, MN (US);
Sanat Mohanty, Woodbury, MN (US);
Pierre A. Deymier, Tucson, AZ (US);
Bassam Merheb, Blaybel, LB;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
THE ARIZONA BOARD OF REGENTS ON BEHALFF OF THE UNIVERSITY OF ARIZONA, Tucson, AZ (US);
Abstract
A sound barrier and method of sound insulation are disclosed. In one aspect of the disclosure, a sound barrier comprises a first, solid medium, such as a viscoelastic solid and a second medium, such as air. At least one of the two media forms a periodic array disposed in the other medium. The solid medium has a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave.