US PATENT SUBCLASS 200 / 50.25
.~.~.~ Racking screw

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

50.01  DF  INTERLOCKING {4}
50.21  DF  .~ Drawout-type switchgear {5}
50.24  DF  .~.~ With racking mechanism {1}
50.25.~.~.~ Racking screw

DEFINITION

Classification: 200/50.25

Racking screw:

(under subclass 50.24) Subject matter wherein the racking

mechanism is a forming a continuous helical rib, or thread, with the cylindrical shank, or spindle, from which it projects.