US PATENT SUBCLASS 366 / 325.1
.~.~ Relatively fixed plural elements

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.~.~ Relatively fixed plural elements {14}
325.2  DF  .~.~.~> Pinlike radially projecting element
325.3  DF  .~.~.~> Spiral arrangement
325.4  DF  .~.~.~> Element mounted parallel to shaft, spaced therefrom, and having at least one free end {1}
325.6  DF  .~.~.~> Looped wirelike element
325.7  DF  .~.~.~> Openwork having element supported by central shaft at opposite ends {2}
325.92  DF  .~.~.~> Flat element having major surface lying in plane substantially including shaft axis (e.g., paddle type) {1}
325.94  DF  .~.~.~> Openwork having substantially no central shaft
326.1  DF  .~.~.~> Adjustable or flexible
327.1  DF  .~.~.~> Of different pitch {2}
327.4  DF  .~.~.~> Oppositely pitched element sections
328.1  DF  .~.~.~> Notched element
328.2  DF  .~.~.~> Apertured element {1}
329.1  DF  .~.~.~> Diverse size or shape {2}
330.1  DF  .~.~.~> Axially directing blade (e.g., propeller, helix section, etc.) {6}

DEFINITION

Classification: 366/325.1

Relatively fixed plural elements:

(under subclass 279) Subject matter wherein the rotatable stirrer comprises a plurality of agitating elements rigidly secured to a rotatable shaft.

(1) Note. Contiguous agitating portions are considered to form a single agitating element except when they differ substantially in geometric form. A thin member that can be regarded as consisting of agitating portions that differ substantially only in width, and form continuous major working surfaces that may be flat, curved, or bent is considered a single agitating element. An agitating portion

is a piece of material constructed and arranged to produce significant agitation of material upon movement through the material. For example, agitating portions that project from another agitating portion are considered separate agitating elements.

(2) Note. Agitating elements may be interconnected by nonagitating portions. Agitating portions connected only by nonagitating portions are considered separate agitating elements. The shaft of the stirrer is a nonagitating portion.