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US 4,068,701 AGranted
Refractory materials
OwnerHarold Garton Emblem, Richard Dudley Shawinventors
Life of this patent
Estimating the term…
Abstract
A refractory shape is molded on a pattern by pouring over the pattern a mixture of two slurries each of which is stable but which together react to gell. The mixture is formed by merging two slurry streams immediately above the pattern.
Claims11
A method of preparing a mould or core for casting liquids such as molten metals, such method comprising the steps of coating a pattern with a mixture of two slurries each of which is substantially stable but which together gell to form a rigid coherent shape wherein each slurry is discharged as a stream onto the pattern, the two streams converging adjacent the pattern to mix the slurries.
Dependencies are inferred from the claim text.