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. 06, 2003
Filed:
Dec. 18, 1998
Wolfgang Bachmann, Grevenbroich, DE;
Gerhard Krump, Schwarzach, DE;
Hans-Jürgen Regl, Düsseldorf, DE;
Harman Audio Electronic Systems GmbH, Straubing, DE;
Abstract
The invention proposes a contact connection for sound reproduction devices according to the flexural wave principle. Since the drive systems of such installations require high current intensities and such current intensities could only be properly transmitted by massive contact connections which however hinder the flexural wave propagation, the object of the invention is to propose a contact connection which eliminates the problems of the state of the art, and which is also very easy to implement. To that end it is proposed that at least one of the two cover layers and/or the core layer contain conductive areas which are connected to the lines of a sound signal source. It is particularly advantageous if the conductive areas can be manufactured together with the components that are also used to manufacture the core layer