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:
Jan. 04, 2011
Filed:
Jan. 22, 2008
Applicant:
Maik Rienecker, Wollbach, DE;
Inventor:
Maik Rienecker, Wollbach, DE;
Assignee:
Preh GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An especially simple and economical moisture sensor with temperature compensation is provided. To this end, in addition to a measuring capacitor, a second capacitor is arranged on a window of a motor vehicle, wherein the second capacitor is not affected by the moisture and/or water droplets. For analysis, a differential measurement of the capacitances of the measuring capacitor and of the second capacitor is carried out, from which is determined a degree of wetting of the window not influenced by the window temperature.