US PATENT SUBCLASS 164 / 23
.~.~.~ Composite, plural part or multilayered mold

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

1  DF  PROCESS {6}
6  DF  .~ Shaping a forming surface (e.g., mold making, etc.) {8}
15  DF  .~.~ Shaping fluent material to form mold {9}
23.~.~.~ Composite, plural part or multilayered mold {4}
24  DF  .~.~.~.~> Sequentially forming mold portions on same shaping member {1}
27  DF  .~.~.~.~> Shaping plural separable mold parts {2}
30  DF  .~.~.~.~> Positioning or maintaining position of core relative to the mold {1}
33  DF  .~.~.~.~> Lining mold surface

DEFINITION

Classification: 164/23

(under subclass 15) Process wherein different parts or layers of mold materials are integrated by a shaping or forming operation.

(1) Note. Included herein is the non treating type coating or lining of the mold structure and also the impregnation of the mold structure.

(2) Note. A lining which functions to retain the casting material is included herein.

(3) Note. The mere insertion of a reinforcing member in the mold material is not sufficient to bring the patent here.

(4) Note. If a flask is a mere container for the mold material and does not affect the final shaping structure, the patent will be provided elsewhere on other features.

SEE OR SEARCH THIS CLASS, SUBCLASS: 14, for processes of mold forming plus subsequent treating coating.

72+, where the coating merely perfects the casting operation but does not itself shape the material, e.g., lubricate.