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:
Nov. 14, 2017
Filed:
Jun. 19, 2012
Katarzyna Kudlaty, Gössendorf, AT;
Michael Wiesinger, Graz, AT;
Michael Cernusca, Judendorf-Strassengel, AT;
Katarzyna Kudlaty, Gössendorf, AT;
Michael Wiesinger, Graz, AT;
Michael Cernusca, Judendorf-Strassengel, AT;
AVL List GmbH, Graz, AT;
Abstract
A capacitive ultrasonic transducer includes a sensor head having a back plate, the structured front side of which is provided with an insulation layer, and the back side of which is provided with an electrode. In order to achieve an improved construction by means of which increased temperature resistance up to several hundred degrees Celsius can be achieved even in strongly oxidizing and reducing media, the membrane provided as a sound generator is subjected to tensile stress in a planar direction.