Classifying – separating – and assorting solids – Fluid suspension – Liquid
Reexamination Certificate
2006-02-07
2006-02-07
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Fluid suspension
Liquid
C209S214000, C209S215000, C209S216000, C209S223100, C209S038000, C209S039000, C209S040000
Reexamination Certificate
active
06994219
ABSTRACT:
A particulate feed comprising a first particle type and a second particle type is separated by providing a separation apparatus having a separation vessel having a top and a bottom, and wherein the separation vessel includes inwardly sloping side walls. A magnet structure has a first pole positioned exterior of and adjacent to each of the side walls of the separation vessel, and a second pole positioned above the separation vessel. A mixture of the particulate feed and a ferrofluid is introduced into the separation vessel, and the particulate feed is separated into a first particle fraction comprising a majority of the first particle type, which sinks in the separation vessel, and a second particle fraction comprising a majority of the second particle type which floats in the separation vessel.
REFERENCES:
patent: 3483968 (1969-12-01), Kaiser
patent: 3483969 (1969-12-01), Rosenweig
patent: 3488531 (1970-01-01), Rosenweig
patent: 3788465 (1974-01-01), Reimers et al.
patent: 3898156 (1975-08-01), Kaiser et al.
patent: 3951785 (1976-04-01), Kaiser et al.
patent: 4052297 (1977-10-01), Mir
patent: 4062765 (1977-12-01), Fay et al.
patent: 4085037 (1978-04-01), Quets et al.
patent: 4239619 (1980-12-01), Aplan et al.
patent: 4347124 (1982-08-01), Shimoiizaka et al.
patent: 4594149 (1986-06-01), Andres et al.
patent: 4819808 (1989-04-01), Andres et al.
patent: 4961841 (1990-10-01), Andres et al.
patent: 5147554 (1992-09-01), Heck
patent: 5340472 (1994-08-01), Heck, deceased
patent: 5549206 (1996-08-01), Siesco, Jr.
patent: 5762204 (1998-06-01), Yang et al.
patent: 5957298 (1999-09-01), Buske et al.
patent: 6026966 (2000-02-01), Svoboda
patent: 6254781 (2001-07-01), Raj
patent: 6851557 (2005-02-01), Svoboda
Halter Richard Frederick
Roth Paul Gregory
McNees Wallace & Nurick LLC
Miller Jonathan R
Walsh Donald P.
LandOfFree
Method for magnetic/ferrofluid separation of particle fractions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for magnetic/ferrofluid separation of particle fractions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for magnetic/ferrofluid separation of particle fractions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3629251