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. 13, 2021
Filed:
Feb. 21, 2018
Applicant:
Korea Institute of Machinery & Materials, Daejeon, KR;
Inventors:
Hyun-Sil Kim, Daejeon, KR;
Pyung-Sik Ma, Daejeon, KR;
Yun-Ho Seo, Daejeon, KR;
Seong-Hyun Lee, Daejeon, KR;
Sang Ryul Kim, Daejeon, KR;
Bong-Ki Kim, Daejeon, KR;
Jae Seung Kim, Daejeon, KR;
Assignee:
KOREA INSTITUTE OF MACHINERY & MATERIALS, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/162 (2006.01); E04B 1/86 (2006.01); G10K 11/168 (2006.01); E04B 1/84 (2006.01);
U.S. Cl.
CPC ...
G10K 11/162 (2013.01); E04B 1/86 (2013.01); G10K 11/168 (2013.01); E04B 2001/8433 (2013.01); E04B 2001/8461 (2013.01); E04B 2001/8476 (2013.01); E04B 2001/8485 (2013.01);
Abstract
A sound absorbing cell according to an exemplary embodiment of the present invention is formed of a plurality of plates that are stacked while interposing an air layer therebetween, wherein the plurality of plates include: a reflective plate that is disposed outermost from a space where sound is generated; and a microperforated plate that is stacked on the reflective plate and having a plurality of holes perforated therein.