(under subclass 379) Devices for jarring sifting elements to keep the sifting passages open, which are not classifiable in the subclasses indented hereunder.
(1) Note. This subclass does not receive structures in which the sifting elements are jarred for promotion of the sifting function and clearing of the sifting passages is merely incidental.
(2) Note. The appropriate subclasses of reciprocating sifters involving impact should be searched.
SEE OR SEARCH CLASS
55, Gas Separation,
293, and 300 for vibrating, shaking or jarring means for clearing gas separators.
