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. 18, 2004
Filed:
Apr. 09, 2002
Lawrence K. Baker, Gate City, VA (US);
Other;
Abstract
An otherwise conventional in-canal hearing aid, including a receiver providing a sound output port typically facing directly towards the ear drum of a user, is provided with a hood disposed between the sound port and the ear drum completely shielding the sound port from foreign substances moving towards the hearing aid from all directions except upwardly from the bottom floor of the user's ear canal. The hood can comprise solid vertical walls completely surrounding the sound port and forming a downwardly extending sound conduit terminating in a downwardly facing sound exit, or the vertical walls can comprise a mesh preferably also forming a downwardly facing sound conduit and sound exit. The hoods provide gravity assisted paths, particularly for mobile fluid components of the foreign substances, downwardly past and away from the receiver sound port. The hoods can be extensions of the hearing aid receiver at the front end of the receiver. The combination of shielding the sound port from entry of foreign substances and the presence of paths diverting fluids past the sound port greatly facilitates cleaning of the hearing aid, particularly by use of previously generally unavailable solvent washing.