Metal casting patterns

Details Metal casting patterns Metal casting patterns

1988-05-16

1989-06-27

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164 34, 164134, 164244, 164249, 264 454, 264275, B22C 702, B22C 904

Patent

active

048420379

ABSTRACT:
A metal casing pattern of expanded thermoplastics material such as polystyrene or polymethyl methacrylate has a filter comprising a porous ceramic body, such as a body having pores extending from one face to another face or a foam structure, incorporated therein.

REFERENCES:
patent: 3314116 (1967-04-01), Wittmoser et al.
patent: 3339620 (1967-09-01), Krzyzanowski et al.
patent: 4415513 (1983-11-01), Plachy
patent: 4612968 (1986-09-01), Ashton et al.
patent: 4660623 (1987-04-01), Ashton

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