US PATENT SUBCLASS 148 / 586
.~.~.~ Gear

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}
559  DF  .~ Heating or cooling of solid metal {22}
579  DF  .~.~ Iron(Fe) or iron base alloy {24}
586.~.~.~ Gear

DEFINITION

Classification: 148/586

Gear:

(under subclass 579) Process wherein the metal undergoing treatment is a part, which is usually toothed or spiraled and referred to as a gear, by which motion is transmitted from one portion of machinery to another.