US PATENT SUBCLASS 209 / 365.4
.~.~.~.~ Differential motion

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

Internet Version by PATENTEC © 1999      Terms of Use


209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
363  DF  .~ Elements {7}
364  DF  .~.~ Actuating {2}
365.1  DF  .~.~.~ Reciprocating {6}
365.4.~.~.~.~ Differential motion

DEFINITION

Classification: 209/365.4

Differential motion:

(under subclass 365.1) Subject matter wherein the recipricatory motion of the sifting element is not uniform in all areas or during all time periods.

(1) Note. The nonuniformity may be effected by, e.g., causing different areas of a screen to vibrate at different frequencies, or causing different velocities of movement in the backward and the forward movements of the reciprocating screen.