US PATENT SUBCLASS 164 / 101
.~.~.~.~.~ Chemical treatment

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

1  DF  PROCESS {6}
47  DF  .~ Shaping liquid metal against a forming surface {26}
91  DF  .~.~ Composite article forming {5}
98  DF  .~.~.~ Shaping metal and uniting to a preform {7}
100  DF  .~.~.~.~ Including preconditioning preform {2}
101.~.~.~.~.~ Chemical treatment {1}
102  DF  .~.~.~.~.~.~> By fluxing

DEFINITION

Classification: 164/101

(under subclass 100) Process of treating the surface of the preform with some chemically reactive agent.

(1) Note. Although chemical treatment may result in the surface layer of the preform being chemically changed, such treatment does not involve a separate coating which acts as

the bonding medium.