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. 26, 2002
Filed:
Mar. 09, 2000
Applicant:
Inventors:
Richard Pirkl, Regensburg, DE;
Achim Przymusinski, Regensburg, DE;
Walter Schrod, Regensburg, DE;
Mark Elliott, Regensburg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 5/100 ;
U.S. Cl.
CPC ...
F02M 5/100 ;
Abstract
A capacitive actuator is driven with a control signal st. The duration ti of actual actuator actuation is compared with the duration t of the control signal st. Proper operation is determined, and the actuator is assumed to be operating correctly, if the measured duration ti is within a range determined by the duration t of the control signal.