Safety windowpanes made of laminated glass; processes for their

Details Safety windowpanes made of laminated glass; processes for their Safety windowpanes made of laminated glass; processes for their

1993-03-23

1994-09-27

Robinson, Ellis P.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428 68, 428137, 428138, 428201, 428212, 428217, 428410, 428426, 428430, 428437, 428442, 428 38, 296 841, 521713, B32B 1710

Patent

active

053506138

ABSTRACT:
A safety windowpane and process of manufacture made of laminated glass. The windowpane includes two glasses made of annealed, hardened or quenched glass 1, 2 bonded to one another by an insert sheet of synthetic material 3 to the opposite faces of which the glasses are adhesively attached. The sheet includes in the material a line 4 of discontinuity in mechanical strength of relatively small width. The line defines an outline of preopening of a surface area such that after breaking of the glasses 1, 2 and rupture along the outline, it offers a sufficient passage for a human body.

REFERENCES:
patent: 3505160 (1970-04-01), Michaels et al.
patent: 3881043 (1975-04-01), Rieser et al.
patent: 5064708 (1991-11-01), Azulay

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