Tile

• US 6,544,587 B1
• Filed: 11/07/2000
• Issued: 04/08/2003
• Est. Priority Date: 05/07/1998
• Status: Expired due to Fees

• Current Assignee: Villi Glas G.m.b.H.
• Original Assignee: Villi Glas G.m.b.H.
• Inventors: Kowalczyk, Johann, Setten, Heimo
• Primary Examiner(s): BARR, MICHAEL E
• Application Number:
  US09/674,837
• Time in Patent Office: 882 Days
• Field of Search: 427/165, 427/292, 427/314, 427/389.7, 427/374.1, 427/407.2, 65/601, 65/602
• US Class Current: 427/165
• CPC Class Codes: B05D 5/06 to obtain multicolour or other optical effects B05D5/02 takes precedence
• CPC Class Codes: B32B 17/06 comprising glass as the main or only constituent of a layer, next to another layer of a specific material
• CPC Class Codes: B44C 7/00 Paperhanging
• CPC Class Codes: E04F 13/145 with an outer layer of glass

Abstract

The invention relates to a tile for placing on walls, floors or the like using adhesive mortar. The inventive tile comprises a transparent glass layer and a colored layer which is placed on the rear side of the glass layer. In order to obtain a particular optical effect, the glass layer is heat treated and the colored layer is comprised of a lacquer, which is compatible with adhesive mortar.

Claims

1. Method for manufacturing a tile consisting of the following steps:

cutting a glass pane to produce a section of a desired shape,

heat treating the section until it softens,

cooling the section to room temperature,

applying a coat of mineral lacquer to one side of the section, and

firing the coat of lacquer at a temperature which is lower than a maximum temperature of the heat treatment.

2. Method according to claim 1, wherein heat treatment includes heating the section to a temperature above a softening point of the glass and subsequently cooling with one or several arrest points.

3. Method according to claim 2, wherein heating is conducted to a maximum temperature ranging from 750°

to 850°

C., the maximum temperature being above the softening temperature of the glass.

4. Method according to claim 1, wherein heat treatment is performed with the section lying on a bed of moulding sand.

5. Method according to claim 4, wherein the bed of moulding sand is provided with a patterned depression prior to placing the section therein.

6. Method according to claim 1, wherein immediately upon application of the coat of lacquer, the tile is heated to a temperature above 60°

.

7. Method according to claim 1, wherein immediately upon application of the coat of lacquer, the tile is heated to a temperature between 150°

C. and 200°

C.

8. Method according to claim 1, wherein immediately upon application of the coat of lacquer, a protective coating is applied to the tile and a firing operation is carried out at a temperature of about 560°

C. up to approximately 660°

C.

9. Method according to claim 8, wherein once firing is over the tile is left to cool down in the closed furnace over a period of at least 3 hours.

10. Method according to claim 1, wherein immediately upon application of the coat of lacquer, a protective coating is applied to the tile and a firing operation is carried out at a temperature of about 580°

C. up to approximately 620°

C.