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US 9,403,288 B2Granted
Cast sheet and method of producing the same
AssigneeButong AB
InventorLars Hoglund
Life of this patent
Estimating the term…
Abstract
A cast sheet that consists of a non planar net structure with cavities, where the net structure spread across a plane and where the cavities can form holes from one side of the sheet to the other. The cavities on both of the sides of the sheet can be arranged in identical structures where the structure of both sides are displaced or rotated in relation to each-other. Also described is a form template for casting of such a sheet and a method for producing such sheet.
Claims24
A sheet, comprising:
- a substance with a first and a second surface separated with a thickness D, the sheet being light permeable or having through holes,
- wherein the first surface contains a plurality of cavities with a maximum depth D1 wherein the cavities form a pattern and wherein the second surface contains a plurality of cavities with the maximum depth D2 wherein the cavities form a pattern and wherein D1<D, D2<D and wherein D1+D2>D,
- wherein the substance is a cement-based substance.
Dependencies are inferred from the claim text.