US PATENT SUBCLASS 148 / 539
.~.~ Centrifugal casting

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
538  DF  .~ With casting or solidifying from melt {6}
539.~.~ Centrifugal casting

DEFINITION

Classification: 148/539

Centrifugal casting:

(under subclass 538) Process wherein melted metal is cast from a rotating means by centrifugal force (e.g., spin casting).