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AssigneeSaint-Gobain Vitrage
InventorsRene Poix, Stephane Margerand, Yves Demars, Ivar Moltke, Mikael Bredsdorff, Eik Bezzel
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A method of producing a vacuum between two glass sheets to form an insulating glazing. One of the sheets has a hole drilled in its thickness. Spacers are placed between the two glass sheets with the sealing joint being placed around the periphery of the sheets. A vacuum is created between the sheets through the hole which is then closed. The spacers are fixed on one of the sheets by bonding with a mineral compound covering at least the bonding zones on the glass sheet. The second sheet is placed on the spacers and on the peripheral sealing joint. The peripheral sealing and the bonding with the spacers are simultaneously effected by raising the temperature.
Method for producing a vacuum between two sheets of glass capable of constituting insulating glazing, one of the sheets of glass including a hole pierced through its thickness, consisting, after having deposited spacers between the two sheets of glass, in forming a sealing joint at the periphery of the sheets of glass, in forming the vacuum and in stopping the said hole, characterized in that the spacers are fixed onto a sheet of glass by bonding with an inorganic compound covering at least the bonding areas on the sheet of glass, in that the second sheet of glass is deposited on the spacers and the peripheral sealing joint, and in that the peripheral sealing and the bonding with the inorganic compound are carried out simultaneously by raising the temperature.
Method according to one of the preceding claims, characterized in that pressure is exerted during the sealing.
Insulating vacuum glazing consisting of two sheets of glass held apart from one another by spacers and a peripheral sealing joint, characterized in that the spacers are parallel-faced bi-truncated spheres made of ceramic.
Dependencies are inferred from the claim text.