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US 6,061,985 AGranted
Plate-shaped fire-resistant element in a sandwich construction
AssigneeWilhelmi Werke AG
InventorsGerhard Kraus, Bernd Fiedler, Robert Wachter
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AssigneeWilhelmi Werke AG
InventorsGerhard Kraus, Bernd Fiedler, Robert Wachter
Estimating the term…
Plate-shaped fire-resistant elements in a sandwich construction have at least three layers connected with one another and resist fire from a front and a back side. The fire-resistant elements are intended in particular for a ceiling or a wall of a building. The elements have a light weight, a high mechanical stability, and can be easily and inexpensively manufactured and installed in a building. The fire-resistant elements have two outer layers and a center layer lying therebetween in the form of a plate, whereby the edge area of the two outer layers is enclosed on at least two oppositely lying sides. Each side has an edge section and the layers are connected with one another. The outer layers have expandable glass granulate or perlite, and the center layer is constructed to prevent passage or penetration of gases.
A plate-shaped fire-resistant element for a ceiling or a wall having a sandwich construction comprising at least three layers which are connected with one another and resist fire from a front and a back side, wherein two outer layers of said at least three layers and a center layer of said at least three layers lying therebetween are constructed as plates, such that an edge area of said two outer layers is enclosed at least on two oppositely lying sides, each with an edge section, and said layers are connected with one another, whereby said two outer layers comprise expandable glass granulate or perlite, and said center layer is constructed to prevent passage of gases.
Dependencies are inferred from the claim text.