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:
Jul. 13, 1993
Filed:
Jul. 18, 1991
Bernd Schultheis, Schwabenheim, DE;
Klaus Kristen, Wiesbaden, DE;
Schott Glaswerke, Mainz, DE;
Abstract
A process for detecting and indicating an anomalous thermal stress condition in a heating surface made from glass ceramic or a comparable material, especially a glass ceramic cooking surface, is described, and by one or more temperature sensors, independent of one another, placed in the area of the heating zone the temperature distribution in the heating surface characteristic for a specific anomalous thermal stress condition is determined and is indicated by suitable operating condition indicators and/or optical and/or acoustic warning devices. This has the advantage that harmful operating conditions caused by carelessness can be indicated to the user early and can be specifically eliminated by the user.