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:
May. 02, 2017
Filed:
Jul. 14, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Paul D. Henry, Carmel, IN (US);
David M. Lutgring, Indianapolis, IN (US);
David A. Hotvet, Savage, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 11/06 (2006.01); A61F 11/08 (2006.01); H04R 1/10 (2006.01); H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
A61F 11/08 (2013.01); H04R 1/1016 (2013.01); H04R 1/1091 (2013.01); H04R 25/654 (2013.01);
Abstract
Water resistant acoustic ports and electronic hearing protection devices incorporating such ports are described. More specifically, water proof acoustic ports that provide water protection for an internal sealed chamber by providing acoustically transparent inlets that are capable of withstanding external water pressure at given depth due to their volume relation to that of the internal chamber, as well as hearing protection devices incorporating such ports, are described.