US PATENT SUBCLASS 366 / 325.94
.~.~.~ Openwork having substantially no central shaft

Current as of: June, 1999
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366 /   HD   AGITATING

241  DF  STIRRER WITHIN STATIONARY MIXING CHAMBER {10}
279  DF  .~ Rotatable stirrer {15}
325.1  DF  .~.~ Relatively fixed plural elements {14}
325.94.~.~.~ Openwork having substantially no central shaft

DEFINITION

Classification: 366/325.94

Openwork having substantially no central shaft:

(under subclass 325.1) Subject matter wherein the elements are arranged to form a substantially open central portion along the axis of rotation and there is no shaft along the axis of rotation in the open central portion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

320, for a screw-type stirrer in the form of an openwork helical ribbon.

325.7, for a rotatable stirrer having an agitating element forming an openwork stirrer and having a central shaft present along the axis of rotation of the stirrer in the same axial location as the agitating element.