초록 ▼

Vacuum glazings and methods of manufacture thereof are described; the glazings provide improved shear stress resistance in that the vacuum glazing comprises two sheets of glass (2, 3), hermetically sealed around the edge (4), with a thermally insulating internal vacuum, and an array of support pilla

Vacuum glazings and methods of manufacture thereof are described; the glazings provide improved shear stress resistance in that the vacuum glazing comprises two sheets of glass (2, 3), hermetically sealed around the edge (4), with a thermally insulating internal vacuum, and an array of support pillars (5) placed between the glass sheets (2, 3), wherein the pillars (5) consist of a core (13), made of a material of higher compressive strength, with at least one end covered by a layer of softer material (14). Alternatively, the vacuum glazing comprises two sheets of glass (2, 3), hermetically sealed around the edge (4), with a thermally insulating vacuum, and an array of support pillars (5) placed between the glass sheets (2, 3), wherein the array includes a small number of fused solder glass pillars located over the surface of the glazing, between pillars of higher compressive strength. Advantageously the support pillars (5) comprise two flat parallel ends (15, 16) shaped to provide stable equilibrium, and sides (17) shaped to provide unstable equilibrium, to ensure that the pillars when placed on a glass sheet will fall onto one of the flat faces (15, 16) and thereafter lie on that face.

대표청구항 ▼

[ We claim:] [1.] Vacuum glazing comprising two sheets of glass, hermetically sealed around edges thereof, with a thermally insulating vacuum therebetween, and an array of support pillars placed between said glass sheets, each support pillar of said array having two flat parallel stand faces and sid

[ We claim:] [1.] Vacuum glazing comprising two sheets of glass, hermetically sealed around edges thereof, with a thermally insulating vacuum therebetween, and an array of support pillars placed between said glass sheets, each support pillar of said array having two flat parallel stand faces and sides curved outward in a cuspoidal shape extending therebetween.