Particulate mixer having paddles of different lengths

Details Particulate mixer having paddles of different lengths Particulate mixer having paddles of different lengths

2007-07-10

2008-12-02

Cooley, Charles E (Department: 1797)

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

Reexamination Certificate

active

07458716

ABSTRACT:
The particulate mixer is part of a blender that includes a cylindrical drum with a particulate mixing chamber. A rotating shaft is arranged in a horizontal direction in the particulate mixing chamber. Four arms project in a radial direction from the rotating shaft and include four paddles with respective stirring blades spaced from each other in an axial direction on the rotating shaft. The drum has a cylindrical center portion and side portions that communicate with the cylindrical center portion. Each of the side portions has a lower face and a vertical face. The drum is in the form of a truncated cone with the rotating shaft as its axis. The stirring blades have a driving end face and a driven end face with slopes corresponding to the slopes of the lower face of the side portions.

REFERENCES:
patent: 721890 (1903-03-01), Henius
patent: 2138240 (1938-11-01), Kobusch
patent: 4205920 (1980-06-01), Vigano
patent: 4310124 (1982-01-01), Schwing et al.
patent: 4390285 (1983-06-01), Durr et al.
patent: 4650343 (1987-03-01), Doom et al.
patent: 2008/0159068 (2008-07-01), Kato
patent: 2003320341 (2003-11-01), None

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