Liquid purification or separation – Comminuting
Reexamination Certificate
2007-02-20
2007-02-20
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Comminuting
C210S194000, C210S532100
Reexamination Certificate
active
11073105
ABSTRACT:
The invention relates to a device to be used in connection with thickening and clarifying apparatuses for shear-thinning of solids containing material, such as slurry, which device contains one conduit for feeding material to be shear-thinnned and another conduit for discharging back the shear-thinned material between a thickening apparatus and the shear-thinning apparatus. The conduit (3,23) for feeding material to be shear-thinned and another conduit (4,24) for discharging back the shear-thinned material are positioned essentially concentrically to each other at least in the ends connected to the thickening apparatus (2,22).
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patent: 2976690 (1961-03-01), Allred et al.
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patent: 3196095 (1965-07-01), Wadsworth
patent: 3360301 (1967-12-01), Donaho, Jr.
patent: 6340033 (2002-01-01), Paradis et al.
patent: 6348087 (2002-02-01), Aslin
patent: 63306354 (1988-12-01), None
Barry Chester T.
Morgan & Finnegan , LLP
Outokumpu Technology Oy
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