US PATENT SUBCLASS 494 / 53
.~.~.~ Including element having helical blade

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


494 /   HD   IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS

43  DF  ROTATABLE BOWL {16}
50  DF  .~ Including driven material-moving means therein {2}
52  DF  .~.~ Rotatably driven coaxially with bowl, but differing as to direction or speed {2}
53.~.~.~ Including element having helical blade {1}
54  DF  .~.~.~.~> Modified blade

DEFINITION

Classification: 494/53

Including element having helical blade:

(under subclass 52) Apparatus wherein the driven means includes a material-engaging portion which is in the nature of a screw thread; e.g., a screw conveyor.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven,

657+, for a conveyor section of that class in the nature of a screw.