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:
Feb. 17, 2009
Filed:
Jun. 15, 2006
Wilmink Engbert, Delft, NL;
Aart Zeger Van Halteren, Hobrede, NL;
Hendrik Dolleman, Assendelft, NL;
Paul Christiaan Van Hal, Hoorn, NL;
Wilmink Engbert, Delft, NL;
Aart Zeger van Halteren, Hobrede, NL;
Hendrik Dolleman, Assendelft, NL;
Paul Christiaan van Hal, Hoorn, NL;
Sonion Nederland B.V., Amsterdam, NL;
Abstract
An electroacoustic transducer employing a polymer connection for maximizing volume displacement. The transducer includes a diaphragm in a case and means for converting. The diaphragm includes a central portion. The means for converting converts between an electric signal and a vibration of the central portion of the diaphragm or vice versa while the diaphragm is coupled to the case. The central diaphragm has an outer edge, and between the outer edge and the inner wall of the transducer case a capillary space is present in which a polymer is provided as a coupling between the outer edge and the inner wall of the case.