Patent · US Active

Glass ceramic cooking plate with locally increased transmission and method for producing such a glass ceramic cooking plate

US10425994B2 · kind B2 · utility

9Cited by

3References

22Claims

0Family size

Assignee

Schott AG · DE

Inventors

Evelin Weiss · Mainz, DE
Bernd Hoppe · Ingelheim am Rhein, DE
Martin Spier · Horrweiler, DE
Daniela Seiler · Alzey, DE

Key dates

Filing date	Apr 15, 2014
Grant date	Sep 24, 2019
Priority date	—
Expiry date	Mar 20, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/1218
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A volume-colored monolithic glass ceramic cooking plate is provided. The plate includes a first zone in which the coloration of the glass ceramic differs from that of a second, adjacent zone, so that an absorption coefficient of the first zone is lower than the absorption coefficient of the second, adjacent zone and so that integral light transmission in the visible spectral range is greater in the first zone than the integral light transmission of the second, adjacent zone. The light scattering in the glass ceramic of the first zone differs from light scattering in the glass ceramic of the second zone by not more than 20 percentage points, preferably by not more than 5 percentage points.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.