US PATENT SUBCLASS 62 / 545
.~.~.~ With externally scraped drum or helix or screw

Current as of: June, 1999
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62 /   HD   REFRIGERATION

56  DF  PROCESSES {28}
532  DF  .~ Fractionally solidifying a constituent and separating the same {8}
544  DF  .~.~ With stirring, agitating or scraping of the solidification zone {1}
545.~.~.~ With externally scraped drum or helix or screw

DEFINITION

Classification: 62/545

(under subclass 544) Processes wherein solidified component is removed from the external surface of a drum on which solidification occurs or the agitator or scraper is in the form of a helix or screw.