Glass-ceramic panel providing a cooking surface with a cooking zone indicating device and method of making same
First Claim
1. A glass-ceramic panel providing a cooking surface with at least one cooking zone, which is associated with a heating body with an annular lighting device and which is optically marked off by a cooking zone indicating device on the cooking surface by means of the annular lighting device,wherein a structured light-impermeable coating layer (2) is provided on an underside of the glass-ceramic panel and includes a predetermined pattern of transparent regions (6), thus forming the cooking zone indicating device (7).
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Accused Products
Abstract
Modern cooking ranges have a glass-ceramic panel (1) providing a cooking surface with at least one cooking zone, which typically is associated with a radiating heated body. To indicate the cooking zone and, if necessary, the residual heat, it is known to associate an externally lighted annular glass with the heated body, which is observable from above as a lighted ring. A structured lighted cooking zone indicating device is provided according to the present invention by a structured light-impermeable coating layer (2) applied directly to the underside of the glass-ceramic panel (1) having transparent regions forming a predetermined or desired structure or pattern within the cooking zone indicating device. This cooking zone indicating device is made by a screen printing technique in which a heat-resistant light-impermeable varnish is applied to the underside of the glass-ceramic panel to form the structured coating layer (2).
35 Citations
11 Claims
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1. A glass-ceramic panel providing a cooking surface with at least one cooking zone, which is associated with a heating body with an annular lighting device and which is optically marked off by a cooking zone indicating device on the cooking surface by means of the annular lighting device,
wherein a structured light-impermeable coating layer (2) is provided on an underside of the glass-ceramic panel and includes a predetermined pattern of transparent regions (6), thus forming the cooking zone indicating device (7).
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7. A method of making a glass-ceramic panel providing a cooking surface with at least one cooking zone and a structured cooking zone indicating device, which is associated with a heating body, said method comprising the steps of:
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a) printing a structured coating layer (2) made from heat-resistant light-impermeable material with transparent portions or regions (6) corresponding to a desired or predetermined pattern for the cooking zone indicating device directly on the underside of the glass-ceramic panel by means of a screen printing technique to form a printed glass-ceramic panel; and
b) drying the printed glass-ceramic panel. - View Dependent Claims (8, 9)
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- 10. A glass-ceramic panel providing a cooking surface with at least one cooking zone, which is associated with a heating body with an annular lighting device and which is optically marked off on the cooking surface by a cooking zone indicating device by means of the annular lighting device, said cooking zone indicating device consisting of a structured coating layer (2) printed on an underside of the glass-ceramic panel, and said structured coating layer (2) consisting of a plurality of transparent regions (6) and light-impermeable regions arranged in a predetermined pattern on the underside of the glass-ceramic panel.
Specification