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. 01, 2001
Filed:
Dec. 06, 1999
Uwe Has, Unterneukirchen-Oberschroffen, DE;
Katrin Horn, Traunreut, DE;
Maximilian Neuhauser, Chieming, DE;
BSH Bosch und Siemens Hausgeraete GmbH, Munich, DE;
Abstract
The sensor-controlled cooktop has a cooktop plate, in particular made of glass ceramic, with one or more defined cooking zones that can be heated with a heating element arranged below the cooktop plate. A heat radiation sensor unit is also arranged below the cooktop plate and is directed toward the underside of the latter in the region of a measuring spot of limited area. The sensor unit is connected to a control unit for regulating the heat output of the heating element. In order to achieve as accurate a regulation of the heat output as possible independently of the pot, there is provision, according to the invention, for the value of the transmittance of the material of the cooktop plate, at least in the region of the measuring spot, to be, at least in the spectral measuring range of the heat radiation sensor unit, lower than 30%, preferably lower than 10% and, in particular, approximately 0%.