Lost foam casting assembly

B - Operations – Transporting – 22 – C

Patent

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22/101, 22/144

B22C 9/04 (2006.01)

Patent

CA 1336796

A lost foam casting assembly comprising a foam pattern, a foam sprue having a lower end connected to the foam pattern and also having an upper portion with an upper end, a mold flask containing the foam pattern and sand, the sand surrounding the foam pattern and at least a portion of the sprue, a sleeve surrounding the upper portion of the sprue and extending above and below the upper surface of the sand, and a sprue cup surrounding the sleeve for directing molten metal into the sleeve and onto the upper end of the sprue.

598138

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