Agitating – Stirrer within stationary mixing chamber – Rotatable stirrer
Patent
1986-10-14
1988-06-21
Simone, Timothy F.
Agitating
Stirrer within stationary mixing chamber
Rotatable stirrer
366299, 366300, 366301, 366312, 366185, B01F 702
Patent
active
047521392
ABSTRACT:
A conditioning device for an extruder includes two juxtaposed, frustocylindrical, intercommunicated chambers, one chamber of which has a greater cross sectional area than the other chamber. A mixing shaft centrally located within the small chamber carries a number of radially extending beaters which rotate at a speed twice that of the rotational speed of paddles mounted on a second mixing shaft located in the large chamber and material introduced into the vessel is passed from side-to-side between the two chambers while being advanced along the length of the vessel. The use of relatively fast moving beaters within a small mixing chamber in combination with relatively slow moving paddles in a larger mixing chamber enables flour-like materials to be properly blended with water with both sufficient agitation and proper retention times within the vessel. In an alternate embodiment of the invention, the vessel is tiltable about an axis parallel to the longitudinal axia thereof, in order to bias the materials under the influence of gravity toward one chamber or the other and to thereby vary the residence time of the materials within the vessel and the mixing characteristics of the device.
REFERENCES:
patent: 2570042 (1951-10-01), West
patent: 2917395 (1959-12-01), Csanyi
patent: 2961224 (1960-11-01), Wright
patent: 3638920 (1972-02-01), Davis
patent: 3752445 (1973-08-01), Nowak
patent: 3790138 (1974-02-01), Neier
patent: 3901482 (1975-08-01), Kieffaber
patent: 4337583 (1982-07-01), Harris
patent: 4506990 (1985-03-01), Neier et al.
patent: 4509860 (1985-04-01), Lasar
Simone Timothy F.
Wenger Manufacturing Inc.
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