US 6,830,369 B2Granted

Mixing apparatus

AssigneeEnersave Fluid Mixers Inc.

InventorsGary Haughton, Martin Behr, Tom Ostrowski

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Abstract

A mixer apparatus for use with a vessel centered about a longitudinal axis is disclosed. The mixer has a tubular blade which: defines a central head axis; has a first end and a second end spaced from the first end along the head axis; and tapers from the first end to the second end. The inner surface of the blade and the second end define an inside blade diameter “ID” and the outer surface of the blade and the first end define an outer blade diameter “OD”. The blade is positioned within and coaxial to the vessel. A scotch yoke, operatively connected to the blade by a shaft, effects reciprocating longitudinal movement of the blade through a stroke “S”, with a duration “T” for each cycle, wherein 175≦0.36×OD2/ID2×S/T≦250 when OD, ID and S are expressed in inches, and T is expressed in minutes.

Claims26

Dependent claims

A mixing apparatus for use with a vessel having a contiguous sidewall centered about and defining a longitudinal axis, the mixing apparatus comprising:

a mixing head having a tubular blade portion centered about and defining a head axis and having a first tube end and a second tube end spaced-apart from one another therealong, the blade portion tapering from the first tube end to the second tube end with the inner surface of the blade portion and the second end defining an inside blade diameter “ID” and the outer surface of the blade portion and the first end defining an outer blade diameter “OD”;
mounting means for mounting the mixing head substantially coaxial to and within the vessel for longitudinal movement relative thereto;
and
reciprocating means for effecting said longitudinal relative movement of the mixing head in a reciprocating manner through a stroke length “S”, with a duration “T” for each cycle,
wherein 175≦0.36×OD2/ID2×S/T≦250
when OD, ID and S are each expressed in inches, and T is expressed in minutes.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/294,563Filed 15 Nov 2002 · continuation in part
Priority: CA 239050212 Jun 2002
Published: US 2003/0198129 A123 Oct 2003
Granted: 14 Dec 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B01F 31/441
With stirrers performing an oscillatory, vibratory or shaking movement: performing a rectilinear reciprocating movement
B01F 31/449
With stirrers performing an oscillatory, vibratory or shaking movement: stirrers constructions
B01F 35/325
Driving arrangements: driving reciprocating or oscillating stirrers
B01F 2215/0409
Technical information in relation with mixing: relationships between different variables defining features or parameters of the apparatus or process