Low shear impeller

Details Low shear impeller Low shear impeller

2007-02-06

2007-02-06

Cooley, Charles E. (Department: 1723)

Agitating

Stirrer within stationary mixing chamber

Pump type

C366S307000, C366S327300, C366S330300

Reexamination Certificate

active

10885401

ABSTRACT:
One or more mixing impellers is carried on a driving shaft received in a mixing vessel. Impeller blades are angularly and/or axially distributed on the shaft and can be single staggered axially-spaced blades or groups of two or more placed angularly around the shaft, e.g., diametrically opposite. Each blade has a radially inner flat plate sloped to produce axial flow, preferably at about 15° from parallel to the rotation axis. An outer plate is joined to the inner plate at a bend line with an angle of about 20° located at about 70% of the outside diameter of the impeller path.

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patent: 3817380 (1988-12-01), None
patent: 5-103965 (1993-04-01), None

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