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:
Nov. 20, 2007
Filed:
Sep. 06, 2006
Pascal Barguirdjian, Saint Malo, FR;
Michel Haigron, Saint Malo, FR;
Allan Rex Hawk, Cheswick, PA (US);
Kwaku Koi Koram, Wexford, PA (US);
Shelby Chun, Mt. Lebanon, PA (US);
Charles S. Voeltzel, New Kensington, PA (US);
Pascal Barguirdjian, Saint Malo, FR;
Michel Haigron, Saint Malo, FR;
Allan Rex Hawk, Cheswick, PA (US);
Kwaku Koi Koram, Wexford, PA (US);
Shelby Chun, Mt. Lebanon, PA (US);
Charles S. Voeltzel, New Kensington, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A moisture detection system includes an electrical conductor disposed on a surface of a substrate, an oscillator for outputting an oscillator signal at a predetermined amplitude and a predetermined frequency, and a resonator circuit coupled to the electrical conductor and responsive to the oscillator signal for outputting a resonator signal having an amplitude related to a resonant frequency of the electrical conductor. A filter circuit responsive to the resonator signal can output a rectified and filtered signal, and an analog-to-digital converter responsive to the rectified and filtered signal can output a digital signal related to the rectified and filtered signal. A sensor can be provided having a property that varies as a function of a temperature at or adjacent the electrical conductor. A controller can be responsive to the digital signal and the property of the sensor for causing another system to operate as a function thereof.