US PATENT SUBCLASS 164 / 351
.~.~.~ Including core in at least one cavity

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}
350  DF  .~.~ Mold having individual mold cavities for forming plural products {1}
351.~.~.~ Including core in at least one cavity

DEFINITION

Classification: 164/351

(under subclass 350) Apparatus having an inner removable core in at least one of the mold cavities.

(1) Note. The combination of a mold and internal core is found in this class so long as one of the elements is composed of sand.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30+, for process of forming plural part shaping surface and positioning core relative to a forming surface.

98+, for process of forming a composite article by embedding a preform in or surrounding it with cast metal, e.g., a metal tubular core of one composition could be positioned in a sand mold and metal of a different composition cast therearound so as to form a tubular product.

302, for centrifugal casting means including a core means.

340, for apparatus means to position core within a mold. 345+, for means to eject core from mold after casting has solidified.

348, for core member having coolant means therein.

365+, for plural separable part molds, e.g., sand molds comprising a cope and drag and numerous cores, in which intricate shapes are cast such as radiators and crankshafts.

369, for sand cores, per se.

SEE OR SEARCH CLASS

249, Static Molds,

63, for metal mold including core; subclasses 142+, for metal mold having inner removable core for forming recess or opening in the material cast; subclasses 175+, for metal cores (internal molds), per se.

264, Plastic and Nonmetallic Article Shaping or Treating:

Processes,

271.1, process of shaping plastic material and embedding preform therein.