COOKING STOVE HAVING A SMOOTH-TOP GLASS CERAMIC COOKTOP, AND A SMOOTH-TOP GLASS CERAMIC COOKTOP WITH A GLASS CERAMIC COOKTOP COOKING SURFACE, METHOD FOR PRODUCTION OF STOVES WITH SMOOTH-TOP GLASS CERAMIC COOKTOPS AND SMOOTH-TOP GLASS CERAMIC COOKTOPS

US6515263B2 · kind B2 · utility

Assignee

• Schott Glas · DE

Inventors

• Ina Mitra · Stadecken-Elsheim, DE
• Friedrich Siebers · Nierstein, DE
• Otmar Becker · Langen, DE
• Andreas Schminke · Weiterstadt, DE
• Bernd Rüdinger · Arnstadt, DE
• Christian Roos · Bad Soden am Taunus, DE
• Evelin Weiss · Mainz, DE
• Roland Dudek · Bad Kreuznach, DE
• Erich Rodek · Mainz, DE
• Friedrich-Georg Schroder · Ingelheim am Rhein, DE

Key dates

• Filing date: Jul 3, 2001
• Grant date: Feb 4, 2003
• Expiry date: Jul 3, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C10/0027
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There is disclosed a stove, with a smooth-top cooktop, for cooking food, the stove comprising: a stove body; a smooth-top cooktop to cook food thereon; and at least one heat source disposed adjacent to a cooking surface of said cooktop. The cooktop comprises glass ceramic with an upper layer and an inner layer, with the upper layer comprising a different glass ceramic material than the inner layer. The upper layer is configured to minimize surface defects such as fissures, cracks, pits, and pores. The inner layer is configured to provide resistance to impact to the upper layer from cooking utensils being dropped onto the upper layer of the smooth-top cooktop, and at least the inner layer of the glass ceramic being configured to obscure visibility of the at least one heat source, through the upper layer of the glass ceramic.