Pattern assemblies

Details Pattern assemblies Pattern assemblies

1979-08-16

1981-11-17

Spruill, R. L.

Metal founding

Means to shape a forming surface

Pattern

164361, 164363, B22C 702

Patent

active

043006175

ABSTRACT:
In the art of investment casting, a refractory mold characterized by a casting system including a sprue passage, a cup at one end of the sprue passage, a runner extending from the cup and connecting to the sprue passage near its other end, at least one pattern cavity gated into the sprue passage between the ends of the runner, and a refractory wall in the cup dividing it into a pouring cup portion communicating with the runner and another portion communicating with the sprue passage. A pattern set-up designed to make the mold by the "lost pattern" process of investment casting.

REFERENCES:
patent: 1240722 (1917-09-01), Huston
patent: 2291788 (1942-08-01), Bean
patent: 2919479 (1960-01-01), Menningen
patent: 3099052 (1963-07-01), Suzuki et al.
patent: 3835913 (1974-09-01), Vandemark et al.
patent: 4109699 (1978-08-01), Miller et al.

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