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:
Dec. 17, 2019
Filed:
Dec. 03, 2015
Applicant:
Eleda S.r.l., Milan, IT;
Inventor:
Renato Caimi, Milan, IT;
Assignee:
ELEDA S.R.L., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/84 (2006.01); E04B 1/82 (2006.01); E04F 13/08 (2006.01); E04F 13/00 (2006.01); E04B 9/00 (2006.01); G10K 11/16 (2006.01);
U.S. Cl.
CPC ...
E04F 13/002 (2013.01); E04B 1/8409 (2013.01); E04B 9/001 (2013.01); E04F 13/0867 (2013.01); E04B 2001/8281 (2013.01); E04F 2290/042 (2013.01);
Abstract
A sound-absorbing element and a sound-absorbing system comprising a fibrous material having the following properties is described: specific airflow resistance comprised between 527 and 1552 [Pa s/m]; and mass porosity comprised between 66% and 79%.