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:
Mar. 15, 2005
Filed:
Apr. 11, 2003
Bernd D. Zimmermann, Ashland, OH (US);
Prasad S. Khadkikar, Lexington, OH (US);
Lance A. Bostic, Ashland, OH (US);
Bernd D. Zimmermann, Ashland, OH (US);
Prasad S. Khadkikar, Lexington, OH (US);
Lance A. Bostic, Ashland, OH (US);
Therm-O-Disc, Incorporated, Mansfield, OH (US);
Abstract
A method for operating a sensing device. The method comprising: a sensor film having an electrical resistance that is adapted to change in response to the presence of a predetermined condition; detecting the presence of the predetermined condition; measuring the electrical resistance of the sensor film at a first time; measuring the electrical resistance of the sensor film at a second time; determining a rate of change of the electrical resistance between the first time and the second time; and comparing the rate of change of the electrical resistance against a threshold value.