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:
Sep. 04, 2001
Filed:
Dec. 28, 1998
Applicant:
Inventor:
Gerhard Mader, Thalmassing, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 2/100 ; G01P 1/5135 ;
U.S. Cl.
CPC ...
G01P 2/100 ; G01P 1/5135 ;
Abstract
An impact detection device, in particular for a motor vehicle, includes at least one micromechanical acceleration switch having a contact element to be moved as a function of acceleration and a counter-contact element. A first voltage is fed to terminals of the contact elements by a monitoring circuit in order to detect an impact. A second voltage, through which the contact is closed on the basis of electrostatic forces of attraction, is fed in order to test the acceleration switch.