US PATENT SUBCLASS 451 / 94
.~.~.~ Mechanical

Current as of: June, 1999
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451 /   HD   ABRADING

64  DF  MACHINE {12}
75  DF  .~ Sandblast {13}
91  DF  .~.~ Abradant propulsion means {5}
94.~.~.~ Mechanical {1}
95  DF  .~.~.~.~> Centrifugal batter with abradant supply {1}

DEFINITION

Classification: 451/94

Mechanical:

(under subclass 91) Abrading machine wherein the propulsion means propels the fluent abrasive material by means of a member which physically engages and forces the abrasive material into the stream.

SEE OR SEARCH THIS CLASS, SUBCLASS:

86, for a sandblast machine having a tumbling barrel and a centrifugal propulsion means for the sand.

SEE OR SEARCH CLASS

241, Solid Material Comminution or Disintegration,

275, for a centrifugal projecting apparatus for comminuting material.