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. 11, 2008
Filed:
Jan. 16, 2003
Peter Ravenscroft Wilkins, Droitwich, GB;
Kevin Ronald Mcwilliams, Stratford upon Avon, GB;
Peter Ravenscroft Wilkins, Droitwich, GB;
Kevin Ronald McWilliams, Stratford upon Avon, GB;
Ceramaspeed Limited, , GB;
Abstract
In apparatus and a method for providing electronic control of an electric heating assembly, a radiant electric heater () is arranged at a lower surface () of a glass-ceramic cooking plate (), the plate having an upper surface () for receiving a cooking vessel (A,B). A temperature sensor () monitors temperature at or adjacent to the cooking plate () and provides an electrical output as a function of temperature. Control means () connected to the temperature sensor () and to the heater () controls energising of the heater from a power supply () for energising the heater at a plurality of user selectable power levels including a full power level. When the heater () is energised at the full power level it is energised to heat the cooking plate () to a first temperature level during a predetermined initial period (A) of 20 to 50 minutes and is thereafter (C) energised to heat the cooking plate to a second temperature level, lower than the first temperature level.