US PATENT SUBCLASS 494 / 55
.~.~.~ Including plurality of discrete pushing or scraping elements moving proximate to material collecting surface of bowl

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}
55.~.~.~ Including plurality of discrete pushing or scraping elements moving proximate to material collecting surface of bowl

DEFINITION

Classification: 494/55

Including plurality of discrete pushing or scraping elements moving proximate to material collecting surface of bowl:

(under subclass 52) Apparatus wherein the driven means includes two or more separate (i.e., noncontinuous), material-engaging elements (e.g., blades, plows), which elements force material from their path as they travel adjacent those portions of the member upon which the material tends to accumulate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53+, for a related material-moving means which may, as in this subclass (55), move material in a pushing or scraping manner, but wherein the material-engaging portion is in the nature of a screw thread.