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. 08, 2014
Filed:
Dec. 07, 2010
Applicant:
Engbert Wilmink, Delft, NL;
Inventor:
Engbert Wilmink, Delft, NL;
Assignee:
Dynamic Ear Company B.V., , NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 11/06 (2006.01); H04R 1/10 (2006.01); H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ear protector () with a sound damping filter (), comprises a membrane (). The membrane is composed of a material that permits the transmission of air and water vapor with respect to the ear from the into the outside of the ear protector, the membrane is pre stressed mounted in the filter, enabling a bigger surface and hence bigger air and water transport at same sound attenuation.
Wilmink, Engbert. (2014). Ear protector with a sound damping filter, sound damping filter for such an ear protector as well as method for manufacturing a sound damping filter for such an ear protector (U.S. Patent No. 8689931). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8689931
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile