US PATENT SUBCLASS 432 / 97
.~.~ Having flow controller restraining solid and passing melt


Current as of: June, 1999
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432 /   HD   HEATING

95  DF  SHAFT TYPE {2}
96  DF  .~ Having combustion products generated in or fed to shaft {5}
97.~.~ Having flow controller restraining solid and passing melt


DEFINITION

Classification: 432/97

(under subclass 96) Apparatus comprising a grid, baffle or restricted passage means in the vertically extending work chamber, the means serving to act to restrict the downward movement of the solid work but permitting the passage of melted material.