Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Radially extending web or end plate
Reexamination Certificate
2011-07-19
2011-07-19
Wiehe, Nathaniel (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Radially extending web or end plate
C416S23100A, C415S117000, C261S091000
Reexamination Certificate
active
07980824
ABSTRACT:
The invention relates to a rotor of a flotation machine, particularly to a rotor, that is used for dispersing air to a slurry, and which rotor comprises alternating air ducts and slurry grooves and a collar fitted to the rotor for guiding the slurry flow into the interior of the rotor for avoiding undesired cross flow effect of the slurry flow. The rotor of the present invention efficiently prevents sanding effect and provides excellent dispersion of air into the slurry.
REFERENCES:
patent: 3479017 (1969-11-01), Thikotter
patent: 4074953 (1978-02-01), Budde et al.
patent: 1474582 (1967-02-01), None
patent: 1521785 (1978-08-01), None
patent: 2207917 (2003-07-01), None
patent: 1391714 (1988-04-01), None
patent: 02081093 (2002-10-01), None
Chernoff Vilhauer & McClung & Stenzel
Outotec Oyj
Wiehe Nathaniel
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