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:
Dec. 31, 2002
Filed:
May. 08, 2001
Harry Engelmann, Ingelheim, DE;
Kurt Schaupert, Hofheim, DE;
Schott Glas, Mainz, DE;
Abstract
The device for controlling a cooking area on a glass-ceramic cooking surface includes an inductive cooking utensil detection device for detecting a cooking utensil on the cooking area and a temperature measurement device for measuring a temperature of the cooking surface. The cooking utensil detection device includes an outer conductor track ( ) and an inner conductor track ( ) nested within said outer conductor track. The temperature measurement device also includes the same outer conductor track ( ) and the inner conductor track ( ), so that the total number of device components is minimized. The outer conductor track ( ) includes, or is supplemented by, a conductor track section ( ) extending from it into a center part of the cooking area ( ). The cooking utensil detection device and the temperature measurement device can operate utilizing the same outer and inner conductor tracks by time-lagged interrogation or with detection signals at different frequencies.