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:
Oct. 20, 2009
Filed:
Jun. 05, 2007
Dietmar Kröger, Graz, AT;
Michael Hirschler, Graz, AT;
Alexander Friedl, Graz, AT;
Alexander Schricker, Graz, AT;
Ferdinand Krispel, Wundschuh, AT;
Wolfgang Michelitsch, Graz, AT;
Dietmar Kröger, Graz, AT;
Michael Hirschler, Graz, AT;
Alexander Friedl, Graz, AT;
Alexander Schricker, Graz, AT;
Ferdinand Krispel, Wundschuh, AT;
Wolfgang Michelitsch, Graz, AT;
Piezocryst Advanced Sensorics GmbH, Graz, AT;
Abstract
A piezoelectric sensor, preferably a pressure sensor, comprising at least two piezoelectric measuring elements placed in a housing, which are clamped between a membrane on the pressured side of the housing and a pick-up electrode electrically insulated against the housing. The piezoelectric measuring elements are fixedly attached to the pick-up electrode by thermo-compression or soldering and together with said pick-up electrode form a compact measuring element stack, which will significantly simplify assembly of the piezoelectric sensor.