Title:
EXPENDABLE PATTERN FOR PRECISION INVESTMENT CASTING
United States Patent 3426834
Inventors:
Jacobs, Louis J.
Klaudinyi, Bela
Fisher, Robert Earl
Publication Date:
02/11/1969
Export Citation:
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Assignee:
OBERMAYER CO THE S
Primary Class:
164/235
Other Classes:
164/34, 164/45, 164/246, 164/517
International Classes:
B22C1/16; B22C7/02; B22C1/16; B22C7/00; (IPC1-7): B22C7/00; B22C1/22; B22C9/12
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US Patent References:
3339620Cavityless casting pattern and method of making same
3270382Shell mould process
3169288Coatings for patterns employed in cavityless casting process
2991267Coated sand and method of making the same
2818619Refractory mold, method of making same and composition therefor
2441695Casting mold




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