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. 03, 2005
Filed:
Apr. 20, 2001
Wolfgang Bachmann, Grevenbroich, DE;
Gerhard Krump, Schwarzach, DE;
Hans-juergen Regl, Regensburg, DE;
Andreas Zinganki, Mettmann, DE;
Wolfgang Bachmann, Grevenbroich, DE;
Gerhard Krump, Schwarzach, DE;
Hans-Juergen Regl, Regensburg, DE;
Andreas Zinganki, Mettmann, DE;
Harman Audio Electronic Systems GmbH, Straubing, DE;
Abstract
A tweeter with a light, thin sandwich plate which can be excited into multiple reflected bending waves, and a driver which makes a vibrating contact and excites the sandwich plate, where the driver is designed for higher sound frequencies and the sandwich plate for propagating bending waves with low damping. The sandwich plate is freely carried with low damping by holding elements, where the latter are designed to be low damping at higher sound frequencies.