B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/74
B22D 18/06 (2006.01)
Patent
CA 1330386
COUNTERGRAVITY CASTING APPARATUS Abstract of the Disclosure Immersion-type vacuum countergravity casting apparatus having a vacuum chamber including spring means for pressing the mold portions sealingly together and/or resisting destructive inward flexure of the mold. A split vacuum chamber, including a floating lower skirt portion, avoids the creation of stress concentration sites between the chamber and the mold.
593943
Hafer Paul H.
Hanson Bradley W.
Porter Jeffrey D.
Smith James Jr.
General Motors Corporation
Gowling Lafleur Henderson Llp
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