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:
Aug. 29, 2017
Filed:
Nov. 20, 2013
Sonova Ag, Stäfa, CH;
Jonas Meyer, Stäfa, CH;
Martin Rahn, Stäfa, CH;
Christoph Leist, Rapperswil, CH;
Roland Hug, Hinwil, CH;
Sven Keller, Wila/ZH, CH;
Marco Breitler, Brüttisellen, CH;
Sonova AG, Staefa, CH;
Abstract
The present invention proposes a sound tube () for an earpiece (), wherein a first section () of an inner surface of the sound tube () has a structured surface, in particular a textural pattern forming a relief comprising convexities () and/or concavities (). Alternatively or additionally, the sound tube () features a radially extending, circumferential flange (), annular lip (') or collar at an outer surface of the sound tube (). The present invention is further directed to a sound tube arrangement comprising two of the proposed sound tubes integrally formed in one piece and to an earpiece () with such a sound tube () or such a sound tube arrangement as well as to a hearing device with such an earpiece ().