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:
Feb. 27, 2001
Filed:
Mar. 30, 1999
Wendelin Klügl, Seubersdorf, DE;
Hinrich Krüger, Regensburg, DE;
Johannes Fitzner, Bernhardswald, DE;
Raimondo Giavi, München, DE;
Karl Kirchweger, Haidershofen, AT;
Jürgen Rink, Wackersdorf, DE;
Gerd Schmutzler, Kareth, DE;
Stefan Lehmann, Regensburg, DE;
Dirk Baranowski, Regensburg, DE;
Günter Lewentz, Regensburg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A device for transmitting a deflection of a piezoelectric actuator to a movable tappet includes a pressure chamber between the piezoelectric actuator and the tappet. The pressure chamber is substantially formed by two mutually parallel diaphragms having effective radii of different lengths. The diaphragm with the longer radius is associated with the piezoelectric actuator and the diaphragm with the shorter radius is associated with the tappet. Therefore, upon a deflection of the first diaphragm by the piezoelectric actuator, the second diaphragm is deflected by a greater distance toward the tappet. A controller with an actuator having a controllable length is also provided.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile