Laminated safety glass
AssigneeSaint-Gobain Vitrage
InventorHeinz Kunert
Life of this patent
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Abstract
A laminated safety glass is disclosed which is comprised of first and second glass sheets, the second glass sheet being smaller than the first, the peripheral edges of each sheet defining between them a stairstep structure. The face of the larger glass sheet defining the stairstep structure is coated with an opaque material, on which is deposited an adhesive, which forms a water-tight seal over the plastic insert between the glass sheets, thereby preventing deterioration of the plastic insert qualities. Preferably, a primer, for improving adherence, is deposited on the opaque sheet before the adhesive bead is deposited, and the bead exhibits flange or tongues in the direction of the bay in which the glass is to be mounted, to delimit the amount and position of the adhesive to be applied.
Claims8
A safety glass suitable for mounting in an opening, comprising:
- a first glass sheet having a peripheral edge,
- a second glass sheet having a peripheral edge and a width and length smaller than that of said first glass sheet, said first and second glass sheets being glued together by a plastic insert therebetween in such fashion that said second glass sheet falls entirely within the periphery of said first glass sheet so that corresponding portions of said edges form a stairstep structure,
- the portion of the side of the first sheet facing said second sheet but not covered thereby being covered with a peripheral strip of opaque material,
- the opaque material being covered with an adhesive bead extending from the peripheral edge of said second glass sheet to that of said first glass sheet, said bead forming a water tight seal about the plastic insert, and having a thickness greater than that of the peripheral edge of said second sheet so as to serve as a fastener for mounting said safety glass in said opening.
Dependencies are inferred from the claim text.