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US 4,517,782 AGranted
Construction element
AssigneeNadalaan S.A.
InventorKhosrow Shamszadeh
Life of this patent
Estimating the term…
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AssigneeNadalaan S.A.
InventorKhosrow Shamszadeh
Estimating the term…
A construction element comprises a ribbed sheet metal core whose ribs are of trapezoidal cross section, at least partially embedded in plastic foam. Fretwork extends along the tops of the ribs, transversely or longitudinally thereof. Transversely, the fretwork can be spaced metal straps or wooden slats. Longitudinally, the fretwork can be undulant or twisted metal strips. The fretwork can be embedded in the plastic foam, or can disposed outside and spaced from the plastic foam so as to serve to improve the connection between the construction element and a layer of concrete cast thereon. The construction elements have overlapping edges of reduced thickness into which the metal core extends. The ends of the construction elements have Z-shaped members one wing of which is secured to the core and the other wing of which serves to secure the element to a support.
A flat modular construction element comprising a rigid core formed of a ribbed sheet at least partially embedded in an insulating material which is a cellular synthetic resin foam, each face of said element being at least partly formed by said insulating material, and connecting elements extending on at least one face of the ribbed sheet and being secured to the tops of the ribs, said connecting elements being spaced from the insulating material so as to be usable for fixing the construction element to a building structure or for securing finishing elements to said construction element.
A flat modular construction element having opposite major faces and comprising a rigid core formed of a ribbed sheet partially embedded in an insulating material which is a cellular synthetic resin foam, one said major face of said element being entirely formed by said insulating material and the other said major face being comprised partly by the tops of the ribs and partly by said insulating material, and connecting elements extending on said other major face of the ribbed sheet and being secured to the tops of the ribs, said connecting elements being usable for fixing the construction element to a building structure or for securing finishing elements to said construction element.
Dependencies are inferred from the claim text.