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. 21, 1985
Filed:
Feb. 10, 1982
Alfie L Grasso, Bewdley, GB;
Micropore International Limited, Droitwich, GB;
Abstract
An electric cooker having means for warning the user when one or more of the cooking surfaces is above a safe touching temperature comprises a glass ceramic cooking surface having one or more electrical heaters arranged on the underside of the cooking surface. A temperature monitoring device is thermally coupled with at least one of the one or more heaters and comprises an auxiliary heater, for example of PTC material, a thermally responsive device in the form of a thermistor, for example of PTC or NTC material, and a thermal buffer positioned between the auxiliary heater and the thermistor. A neon lamp or a filament lamp is provided for indicating when the thermistor is at or above a predetermined temperature.