US PATENT SUBCLASS 164 / 349
.~ United particle type shaping surface (e.g., sand, etc.)

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

271  DF  MEANS TO SHAPE METALLIC MATERIAL {12}
349.~ United particle type shaping surface (e.g., sand, etc.) {9}
350  DF  .~.~> Mold having individual mold cavities for forming plural products {1}
352  DF  .~.~> Including metal chill {2}
358  DF  .~.~> Including apertured strainer means for separating unwanted component from casting material
359  DF  .~.~> Including means to compensate for shrinkage (e.g., shrink head, etc.) {1}
361  DF  .~.~> Shell type mold
362  DF  .~.~> Having means to restrict turbulence of flow during casting
363  DF  .~.~> Bottom gate or side pouring mold
364  DF  .~.~> Comprised of separable parts {1}
369  DF  .~.~> Core {1}

DEFINITION

Classification: 164/349

(under subclass 271) Apparatus wherein the shape imparting surface is composed of particles which retain their individual identity and are bonded or adhered to one another.

(1) Note. The shaping surface in this and indented subclasses are static, i.e., the shaping surface does not move in any way, once they are assembled, in order to effect shaping of the cast metal.

(2) Note. By the term "sand" is meant granular particles resulting from the breakdown of rocks. Sand particles have refractory characteristics. The term includes "silica sand" from quartz and other siliceous rocks which comprises 50 to 95 per cent of the total material in any molding sand; specially sands such as zirconite and olivine. Also included are other particular material such as carbon, clays, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165+, for means to make shell type molds.

169+, for means to shape molds from particulate materials.

348, for sand mold including cooling means. SEE OR SEARCH CLASS

249, Static Molds, for metal molds having a sand coated shaping surface. The sand coating takes the shape of the metal mold and does no shaping, per se.