US PATENT SUBCLASS 366 / 330.1
.~.~.~ Axially directing blade (e.g., propeller, helix section, etc.)

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}
330.1.~.~.~ Axially directing blade (e.g., propeller, helix section, etc.) {6}
330.2  DF  .~.~.~.~> Blade detachably secured to hub
330.3  DF  .~.~.~.~> Bowed or angled out of plane of rotation
330.4  DF  .~.~.~.~> Outwardly increasing width
330.5  DF  .~.~.~.~> Outwardly decreasing width
330.6  DF  .~.~.~.~> Nonhorizontal, nonvertical axis of rotation
330.7  DF  .~.~.~.~> Convex trailing edge in plane of rotation

DEFINITION

Classification: 366/330.1

Axially directing blade (e.g., propeller, helix section, etc.):

(under subclass 325.1) Subject matter wherein an agitating element is relatively thin compared to its other dimensions and is angularly positioned with respect to the rotatable shaft so as to produce movement of the material in a direction having a component parallel to the axis of rotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

270, for a pump-type mixing apparatus including a propeller-type stirrer.

327.1+, and 327.4, for a stirrer having an agitating element pitched to move material axially or radially of the stirrer.