US PATENT SUBCLASS 164 / 7.2
.~.~.~ To apply consumable shielding film to shaping surface

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}
7.1  DF  .~.~ Utilizing a vacuum during shaping {1}
7.2.~.~.~ To apply consumable shielding film to shaping surface

DEFINITION

Classification: 164/7.2

To apply consumable shielding film to shaping surface:

(under subclass 7.1) Process wherein an impervious consumable membrane is adhered onto a particulate shaping surface by a vacuum.

SEE OR SEARCH THIS CLASS, SUBCLASS:

160.2, for casting apparatus provided with means to apply film or suction directly to mold material with a shielding film.