US 4,380,398 AGranted

Dispersion mixer

OwnerBasil A. Burgessinventor

Life of this patent

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Abstract

A dispersion mixer is disclosed for breaking up and dispersing agglomerated particles in a liquid medium. The mixer has the capability of causing high speed particles to strike each other in such a manner as to develop their maximum shear energy potential and thus be more efficient than existing dispersion mixers. The mixer operates in a container and has a first rotor shaft extending downwards at the approximate center of the container, a second rotor shaft substantially parallel to the first rotor shaft, spaced from the first rotor shaft, at least one mixing rotor disc mounted on the first rotor shaft, and at least one mixing rotor disc mounted on the second rotor shaft, a first drive for rotating the first rotor shaft about its own axis, and the second rotor shaft about its own axis, and a second drive for moving the second rotor shaft in a circumferential path about the first rotor shaft.

Claims4

Dependent claims

A dispersion mixer for operating in a container the mixer comprising

a first rotor shaft extending downwards into the container at the container's approximate center,
a second rotor shaft, substantially parallel to the first rotor shaft, spaced from the first rotor shaft and extending downwards into the container,
at least one mixing rotor disc mounted on the first rotor shaft, and at least one mixing rotor disc mounted on the second rotor shaft,
first drive means including first motor means for rotating the first rotor shaft about its own axis, and the second rotor shaft about its own axis, and
second drive means including second motor means independent of said first drive means for moving the second rotor shaft in a circumferential path about the first rotor shaft, the first rotor shaft rotating at substantially the same rotational speed as the second rotor shaft, and in the same direction whereby the first drive means rotates the rotor shafts at high speed to develop maximum shear and the second drive means orbits the second rotor shaft about the first rotor shaft at a low speed.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/187,709Filed 16 Sep 1980
Granted: 19 Apr 1983
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

B01F 27/951
With stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis: with at least one stirrer mounted on the sun axis
B01F 27/95
With stirrers rotating about a substantially vertical axis: with stirrers having planetary motion, i.e. rotating about their own axis and about a…
B01F 35/3231
For vertical stirrer shafts: driving several stirrer shafts, e.g. about the same axis
B44D 3/08
Implements for stirring or mixing paints: for liquid or semi-liquid paints