Agitating – Agitator – Stirrer
Patent
1976-04-26
1977-10-18
McCarthy, Edward J.
Agitating
Agitator
Stirrer
366330, 366605, B01F 716
Patent
active
040542726
ABSTRACT:
A blender for mixing slurries, suspensions and the like that include particulate solids in a liquid characterized by a plurality of blades disposed along a bottom mixing zone of an elongate central shaft, the blades being fixedly connected with the shaft and extending radially outwardly therefrom and balanced to minimize rotational vibration; the blades all having a twist therealong. A bottom blade is twisted so that the outer radial portions have a critical angle .alpha. with the trailing edge tilted upwardly for moving the solids radially outwardly and upwardly. A second blade at the top of the mixing zone is bent downwardly and also has a twist, the angles of bend and twist being such that the solids are forced radially inwardly and downwardly to a plurality of mixing blades therebelow and splash is prevented. An intermediate mixing blade is provided with critical angles on the outer radial portions for mixing and forcing the solids downwardly. This blender enables thorough mixing and achieving a substantially uniform admixture of the solids in the liquid in only a few minutes whereas up to hours have been necessary by the prior art blenders or shakers.
REFERENCES:
patent: 7046 (1850-01-01), Young
patent: 1841435 (1932-01-01), Gibson
patent: 2799485 (1957-07-01), Silverman
patent: 2896925 (1959-07-01), Ploce
patent: 3307834 (1967-03-01), Wilde
Fails James C.
McCarthy Edward J.
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