Schott Ag

Schott Glas

Helga Goetz

Martin Taplan

Gerhard Hahn

Wolfgang Schmidbauer

Falk Gabel

Thomas Zenker

Otmar Becker

Dietmar Wennemann

Harald Striegler

Michael Bug

Friedrich-Georg Schroeder

Thoralf Johansson

Veit Luther

Petra Grewer

Jan-Peter Ortmann

Thomas Schuler

Guenther Siebenhaar

Michael Glasenapp

Friedrich Siebers

Evelin Weiss

Thilo Zachau

Erich Rodek

Stefan Hubert

Andreas Habeck

Roland Dudek

Volker Plapper

Sascha Backes

Patrik Schober

Christof Koester

Horst Schillert

Sybill Nuettgens

Stephan Corvers

Stefan Haase

Friedrich Georg Schroeder

Markus Borrmann

A lithium-containing, transparent glass-ceramic material is provided. The material has low thermal expansion and has an amorphous, lithium-depleted, vitreous surface zone. The zone is at least 50 nm thick on all sides and encloses a crystalline interior, which has high transmission. The material includes a transition region connecting the zone and the interior.

Transparent lithium glass-ceramic material, production and use thereof

A transparent, dyed cooktop is provided that has improved color display capability. The cooktop is made of a glass ceramic having high quartz mixed crystals as the predominant crystal phase, wherein the glass ceramic comprises none of the chemical refining agents arsenic oxide and/or antimony oxide, except for inevitable trace amounts. The glass ceramic has transmission values of greater than 0.1% in the range of visible light over the entire wavelength range greater than 450 nm, light transmission in the visible range of 0.8 to 5%, and transmission in the infrared at 1600 nm of 45-85%. The glass ceramic also includes a display apparatus that has a display device which is designed to display different operating conditions with different colors and/or symbols.

Transparent, dyed cooktop

A method for the production of protection devices is provided. The method includes the step of providing a tile package. The provision of the tile package includes the steps of: laminating at least one board of a tile material onto a polymer foil; scoring the board on the side which is opposite to the polymer foil; and fracturing the board along the scoring lines for achieving a plurality of tiles which are fixed on the polymer foil.

Method for the production of a protection device

In order to obtain glass or glass ceramic materials having increased strength, the invention provides a method for producing glass or glass ceramic articles, which comprises the steps:

Method for producing glass or glass ceramic and in particular glass or glass ceramic article

An oven muffle having a receiving space, at least some regions of which are delimited by wall elements, in which at least one of the wall elements is permeable to IR radiation or has a region that is permeable to IR radiation. In the oven muffle, the cooking performance is successfully improved while also providing an easily cleanable interior because a reflecting element that reflects IR radiation is positioned in the region of the outer surface of the wall element on a side oriented away from the receiving space.

Oven muffle

The cooking station includes a working panel ( ) or other cooking station component providing a working or cooking surface ( ); a wok-type glass-ceramic bowl ( ) built into an opening (O) provided in the working panel ( ) or other cooking station component, which has an upstanding edge ( ) and a sunken curved heating surface ( ), the upstanding edge ( ) being arranged sunken to a predetermined depth below the working or cooking surface or flush with the working or cooking surface ( ); attaching components for rigidly mounting the glass-ceramic bowl ( ) in the opening in the working or cooking surface and a bottom pan ( ) attached under the glass-ceramic bowl ( ) and to the attaching components, which provides support for heating elements of the cooking station.

Cooking station with a glass-ceramic bowl having a sunken curved heating surface

The wok is made from hardened glass or glass-ceramic material so that it has a cooking surface that is easier to clean than prior art metal woks. Furthermore when it is heated a better temperature distribution for cooking is produced and it can be universally heated, either by a radiantly heated body or an atmospheric gas burner. The method of making the wok starts with a glass blank or piece of borosilicate glass, which is heated until it softens and then is shaped or formed into the shape of the wok, optionally ceramicized and cooled.

Hardened glass or glass-ceramic cooking vessel formed as a wok, and method of making same

Growing community of inventors

Heidesheim, Germany

Helga Goetz