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US 4,524,039 AGranted
Moulding of construction products
AssigneeC. G. Bevan Associates Limited
InventorChristopher G. Bevan
Life of this patent
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AssigneeC. G. Bevan Associates Limited
InventorChristopher G. Bevan
Estimating the term…
A method of manufacturing construction products which involves feeding dry or substantially dry constituents including a liquid-setting powder and a reinforcement therefor into a molding zone. At least a part of the mold is vibrated to effect compacting of the constituents in the molding zone to such a degree that the constituents will stand and be self-sustaining upon removal of an upstanding portion of the mold. At least a portion of the mold is removed from contact from the compacted constituents, thereby exposing at least one upstanding surface of of the compacted constituents. A quantity of setting liquid is applied to substantially the full extent of the surface. The quantity of setting liquid is sufficient to wet all of the compacted constituents in the molding zone so as to initiate a chemical setting reaction but not sufficient to completely saturate the compacted constituents and to cause the associated effect of structural collapse of the compacted constituents in the region of the exposed surface.
A method of manufacturing construction products comprising the steps of feeding dry or substantially dry constituents including a liquid-setting powder and a reinforcement therefor into a molding zone, vibrating at least a part of said mold to effect compacting of the constituents in such molding zone to such a degree that said constituents will stand and be self-sustaining upon removal of an upstanding portion of the mold, removing at least a portion of the mold from contact from said compacted constituents, thereby exposing at least one upstanding surface of the compacted constituents, and applying to substantially the full extent of said surface a quantity of setting liquid, said quantity being sufficient to wet all of the compacted constituents in the molding zone so as to initiate a chemical setting reaction but not sufficient to completely saturate the compacted constituents and to cause the associated effect to structural collapse of the compacted constituents in the region of said exposed surface.
Dependencies are inferred from the claim text.