B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
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
Outboard Marine Corporation
Smart & Biggar
LandOfFree
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