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. 22, 2015
Filed:
Nov. 23, 2011
Samuel Harsch, Ballaigues, CH;
Samuel Harsch, Ballaigues, CH;
Sonova AG, Stäfa, CH;
Abstract
A hearing protection earpiece having a shell shaped according to conform to the user's concha and ear canal and having an open hollow lateral portion to be inserted into the user's concha and a medial portion to be inserted into at least an outer portion of the user's ear canal, wherein the medial portion of the shell is axially adjacent to the lateral portion of the shell, wherein the lateral portion of the shell forms part of an open portion of the earpiece and the medial portion of the shell forms part of a closed portion of the earpiece, wherein the earpiece provides for a mechanical sound attenuation of at least 10 dB averaged over the audible frequency range, and wherein the lateral portion of the shell has a wall thickness of not more than 3 mm and is shaped to cover at least half of the concha area.