Abstract: A cooking system based on the principle of heat conduction and having a one-piece cooking surface made of a glass-ceramic material. The cooking surface has a cooking area which can be directly heated in an individual manner by heating elements placed on the underside of the glass-ceramic plate. The glass-ceramic plate has main crystal phases, high quartz mixed crystal or keatite mixed crystal, primarily formed from constituents LiO2—Al2O3—SiO2, with a coefficient of expansion of ?=0 to 1.5×10?6/K, preferably ?=0 to 1×10?6/K, and with a thermal conductivity of <3 W/mK, preferably of <2.7 W/m K. The glass-ceramic plate also has at least one cooking area situated on an underside of the plate. In addition, the heating elements of the cooking areas are of metallic layers, and a porous ceramic layer is placed between the underside of the glass-ceramic plate and the heating elements while serving as an electrical insulation layer.

Abstract: The invention relates to a ceramic cooktop comprising a cooking plate (12) made of glass ceramic or glass. The ceramic cooktop also comprises an electrical heat conductor layer (22) and an insulating layer (14) that is located between the cooking plate (12) and the heat conductor layer (22). The insulating layer (14) consists of a plurality of individual layers (16, 18, 20) that each have a porosity that decreases toward the heat conductor layer (22).

Abstract: The invention discloses a method of producing a light-scattering layer on a transparent body, in particular consisting of glass or a glass ceramic. The light-scattering layer is produced by thermal spraying a material such as aluminum oxide, titanium oxide etc. onto a surface of the preheated body with a maximum layer thickness of 100 micrometers. The method is particularly suited for preparing light-scattering layers on glass ceramic cooktops.

Abstract: A ceramic cooking system including a glass ceramic plate, with an underside that supports an electrical insulation layer having one or more heating elements for directly heating the glass ceramic plate. This invention improves the adhesion of the insulation during heating and prevents the insulation from partially detaching. Thus, the insulation layer is subdivided into several insulation segments that extend over the cooking area and support heating elements specifically assigned to each segment.

Abstract: A stove (10) comprising a baking muffle (12) is disclosed. Within the baking muffle (12) guide means (14, 15, 16, 17, 18, 19) for receiving at least one heatable cooking bowl (22) are provided, wherein the cooking bowl (22) comprises a substrate layer, in particular a bottom, at the outside of which a directly heatable heating layer is provided which is coated by an insulating layer (FIG. 1).

Abstract: The invention discloses a method of producing a light-scattering layer on a transparent body, in particular consisting of glass or a glass ceramic. The light-scattering layer is produced by thermal spraying a material such as aluminum oxide, titanium oxide etc. onto a surface of the preheated body with a maximum layer thickness of 100 micrometers. The method is particularly suited for preparing light-scattering layers on glass ceramic cooktops.

Abstract: The invention relates to a ceramic cooktop comprising a cooking plate (12) made of glass ceramic or glass. The ceramic cooktop also comprises an electrical heat conductor layer (22) and an insulating layer (14) that is located between the cooking plate (12) and the heat conductor layer (22). The insulating layer (14) consists of a plurality of individual layers (16, 18, 20) that each have a porosity that decreases toward the heat conductor layer (22).

Abstract: The invention discloses a ceramic cooktop comprising a cooking plate made of a glass ceramic or glass. The ceramic cooktop also comprises an electrical heat conductor layer and an insulating layer that is located between the cooking plate and the heat conductor layer. Onto the cooking plate a thermally sprayed bonding layer is applied, before further layers are applied.

Abstract: The invention relates to a ceramic cooktop comprising a cooking plate (12) made of glass ceramic or glass. The ceramic cooktop also comprises an electrical heat conductor layer (18), an insulating layer (16) that is located between the cooking plate (12) and the heat conductor layer (18), and an electrically conductive intermediate layer (14) between the cooking plate (12) and the insulating layer (16). The intermediate layer (14) is a thermally sprayed layer consisting of an electrically conductive ceramic material, preferably of an oxide layer that is rendered electrically conductive by oxygen loss occurring during thermal spraying, or of a cermet.

Abstract: The invention relates to a ceramic hot-plate with a glass ceramic plate which includes heating elements, which are separated by an insulating layer, for direct heating on the lower side thereof. The cooking area is sub-divided into at least one inner and one outer area which include individual heating elements for each partial area. Said heating elements can be switched or adjusted with regard to the output thereof by means of a control device according to temperature values detected by temperature sensors associated with the partial areas. Concentrically arranged conductor strips enable the hot-plate to be constructed easily, the design thereof ensuring that the surface thereof is used in an optimum manner and providing a high degree of heating efficiency by virtue of the homogeneous manner in which the partial areas are heated.