US PATENT SUBCLASS 164 / 7.1
.~.~ Utilizing a vacuum during shaping
Current as of:
June, 1999
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164 /
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METAL FOUNDING
1
DF
PROCESS
{6}
6
DF
.~ Shaping a forming surface (e.g., mold making, etc.) {8}
7.1
.~.~ Utilizing a vacuum during shaping {1}
7.2
DF
.~.~.~
> To apply consumable shielding film to shaping surface
DEFINITION
Classification: 164/7.1
Utilizing a vacuum during shaping:
(under subclass 6) Process in which a less than ambient
pressure is employed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61+, for processes of utilizing a vacuum in shaping metallic material.
160.1+, for casting apparatus provided with means to shape a forming surface in the form of a shielding film.
