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:
Jul. 15, 2003
Filed:
Mar. 09, 2001
Jürgen Kraetzl, Althegnenberg, DE;
Markus Hugenschmidt, München, DE;
W.E.T. Automotive Systems AG, Odelzhausen, DE;
Abstract
The present invention relates to a pressure sensor comprising a capacitor with a first capacitor pole element ( ) and at least one additional capacitor pole element ( ) arranged at a distance from one another. In accordance with the invention, at least one capacitor pole element ( ) has at least one textured region ( ′ and/or ′) on the surface of its conductive components facing toward the other capacitor pole element ( ), and the distance between the two capacitor pole elements ( ) is different in the textured region ( ′ and/or ′) than in an adjacent region ( ′ and/or ′) to the textured region ( ′ and/or ′). The difference between these two different distances can be changed—more particularly, reduced—by deformation of at least one capacitor pole element ( ) when the capacitor is subjected to pressure.