Fire screening, light-transmitting panels with intumescent material and exposed connection surfaces
First Claim
1. A light-transmitting, fire resistant glazing panel, comprising:
- at least two vitreous sheets and at least one intervening layer of intumescent material sandwiched between adjacent sheets of the at least two vitreous sheets,wherein two of the at least two vitreous sheets have different thicknesses to provide a thick sheet having opposing main faces, and a thin sheet, and are bonded together via the intumescent material sandwiched therebetween, the thin sheet of the two vitreous sheets having a size which conforms to that of the thick sheet, and the thin sheet and the intervening layer of intumescent material being shaped to leave the main face of the thick sheet to which they are bonded exposed at a plurality of local marginal areas, thereby defining a plurality of re-entrants, one re-entrant of the thin sheet over each exposed local marginal area of the thick sheet.
1 Assignment
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Accused Products
Abstract
A light-transmitting fire resistant glazing panel includes at least two vitreous sheets between which is sandwiched at least one intervening layer of intumescent material, for example, of hydrated sodium silicate. Two of the vitreous sheets are of different thicknesses and they are bonded together via the sandwiched intumescent material. The thinner of the two vitreous sheets is of conforming size to the thicker sheet and the thinner sheet and intumescent layer are shaped to leave the main face of the thicker sheet to which they are bonded exposed at a plurality of local marginal areas. This allows a hinge bracket 11 to be attached to the thicker sheet 1 at the exposed area 5 by a plurality of bolts leading through holes in the thicker sheet. The bolts may comprise sheathes, e.g. of nylon, or they may lead through bushes, e.g. of nylon, to avoid direct contact between the metal of the bolts and the glass if this is desired. The re-entrants in the thinner sheets over the exposed areas of the thicker sheet are then optionally filled with a pre-formed member of fire retandant material such as that available under the Trade Name PALUSOL, and a finishing mask.
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Citations
9 Claims
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1. A light-transmitting, fire resistant glazing panel, comprising:
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at least two vitreous sheets and at least one intervening layer of intumescent material sandwiched between adjacent sheets of the at least two vitreous sheets, wherein two of the at least two vitreous sheets have different thicknesses to provide a thick sheet having opposing main faces, and a thin sheet, and are bonded together via the intumescent material sandwiched therebetween, the thin sheet of the two vitreous sheets having a size which conforms to that of the thick sheet, and the thin sheet and the intervening layer of intumescent material being shaped to leave the main face of the thick sheet to which they are bonded exposed at a plurality of local marginal areas, thereby defining a plurality of re-entrants, one re-entrant of the thin sheet over each exposed local marginal area of the thick sheet. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A kit, comprising:
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a light-transmitting, fire resistant glazing panel comprised of at least two vitreous sheets and at least one intervening layer of intumescent material sandwiched between adjacent sheets of the at least two vitreous sheets, wherein two of the at least two vitreous sheets have different thickness to provide a thick sheet having opposing main faces, and a thin sheet, and are bonded together via the intumescent material sandwiched therebetween, the thin sheet of the two vitreous sheets having a size which conforms to that of the thick sheet, and the thin sheet and the intervening layer of intumescent material being shaped to leave the main face of the thick sheet to which they are bonded exposed at a plurality of local marginal areas, thereby defining a plurality of re-entrants, one re-entrant of the thin sheet over each exposed local marginal area of the thick sheet; and a member made of fire-retardant material shaped to fit into each re-entrant of the plurality of re-entrants. - View Dependent Claims (8, 9)
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Specification