Classifying – separating – and assorting solids – Fluid suspension – Gaseous
Reexamination Certificate
2007-03-02
2010-10-26
Mackey, Patrick (Department: 3653)
Classifying, separating, and assorting solids
Fluid suspension
Gaseous
C209S710000, C209S721000, C209S728000, C209S732000, C210S512100
Reexamination Certificate
active
07819257
ABSTRACT:
Device and method for removing heavy contaminants from an apparatus for treating a fibrous suspension. The device includes at least one connection part being coupleable to a heavy contaminants outlet of the apparatus. The at least one connection part includes an inner surface having a polygonal cross section and at least one heavy contaminants outlet.
REFERENCES:
patent: 3533506 (1970-10-01), Carr
patent: 3568847 (1971-03-01), Carr
patent: 3861532 (1975-01-01), Skardal
patent: 4317716 (1982-03-01), Liller
patent: 4378289 (1983-03-01), Hunter
patent: 4629555 (1986-12-01), Colman et al.
Bart Roman
Futterer Juergen
Piper Michael
Greenblum & Bernstein P.L.C.
Mackey Patrick
Matthews Terrell H
Voith Patent GmbH
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