US PATENT SUBCLASS 164 / 361-- .~.~ Shell type mold

US PATENT SUBCLASS 164 / 361
.~.~ Shell type mold

Current as of: June, 1999
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164 /	HD	METAL FOUNDING

271	DF	MEANS TO SHAPE METALLIC MATERIAL {12}
349	DF	.~ United particle type shaping surface (e.g., sand, etc.) {9}
361		.~.~ Shell type mold

DEFINITION

Classification: 164/361

(under subclass 349) Apparatus wherein the shaping surface is a thin shell-like mold formed from thermosetting resin-bonded sand mixtures.

(1) Note. Generally the shell mold consists of two or more parts, i.e., cope and drag.

(2) Note. The shell mold may be externally backed up with steel shot, sand, or similar material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21, for processes of shaping shell type molds by spraying

resin containing particulate material against a shaping surface.

165+, for shell type molding machine to shape a forming surface. 520+, for processes of shaping shell type molds.