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:
Jul. 19, 2011
Filed:
Feb. 06, 2007
Applicant:
Gerhard Röhrlein, Höchstadt, DE;
Inventor:
Gerhard Röhrlein, Höchstadt, DE;
Assignee:
Siemens Audiologische Technik GmbH, Erlangen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
With a hearing aid device barometric pressure equalization is intended to be achieved in a simple and economical manner in a sound canal between an earpiece and a cerumen protection system with a gas-tight membrane. To this end a pressure equalization canal is proposed, which opens into the sound canal. The pressure equalization canal preferably connects the sound canal to a vent. It can be produced in a simple manner when manufacturing the housing of the hearing aid device using a computer-aided manufacturing method.