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:
May. 03, 2005
Filed:
Oct. 28, 2002
Hans-michael Schmitt, Muennerstadt, DE;
Juergen Bach, Bad Neustadt, DE;
Thomas Polzer, Bad Neustadt, DE;
Rudolf Hartmann, Salz, DE;
Hans-Michael Schmitt, Muennerstadt, DE;
Juergen Bach, Bad Neustadt, DE;
Thomas Polzer, Bad Neustadt, DE;
Rudolf Hartmann, Salz, DE;
Preh-Werke GmbH & Co. KG, Bad Neustadt a. d. Saale, DE;
Abstract
The invention relates to a sensor unit for detecting the wetting of a window. Signals from the condensation sensor are used to control an air conditioning, heating, and/or ventilation unit. The signals of the rain sensor, on the contrary, are used to control a windshield wiper or washing unit for vehicles. A sensor unit, which comprises two sensors, is placed on the interior of the window. In a preferred variant, both are coupled to a common switchable evaluation unit, so that through mutual evaluation of the two sensors or their signals, both incipient condensation on the interior of a vehicle window and the wetting of the exterior, e.g., by rain, is detected. In an improvement of the invention, both sensors are integrated into a sensor module.