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:
Apr. 11, 2006
Filed:
Aug. 25, 2004
Customized passive hearing protection earplug, use of the same and method for manufacturing the same
Mathias Haussmann, Zurich, CH;
Mathias Haussmann, Zurich, CH;
Phonak AG, Staefa, CH;
Abstract
The invention relates to a passive hearing protection earplug for being worn at least in part in the ear canal () of a user, comprising a hard shell () having an elasticity of from shore D 85 to shore D 65 and pulling means () which are adapted for being manually operated by the user and which are provided at the outer end of said shell, said shell having an outer surface individually shaped according to the measured inner shape of the user's ear canal and outer ear (). The shell has a size and an outer shape which are adapted to enable said shell to be manually moved, by seizing the pulling means, from a sound attenuation position into a communication position from which it is automatically returned into the attenuation position by elastic forces exerted by deformed parts of the user's ear canal and concha upon release of the pulling means. The invention also relates to a use of such an earplug and a method for manufacturing such an earplug.