Classifying – separating – and assorting solids – Plural – diverse separating operations – Including electrostatic
Reexamination Certificate
2006-08-08
2006-08-08
Walsh, Donald P. (Department: 3653)
Classifying, separating, and assorting solids
Plural, diverse separating operations
Including electrostatic
C209S128000, C096S073000, C095S023000, C095S078000
Reexamination Certificate
active
07086535
ABSTRACT:
A separator for intended use in separating particles having a selected charge from a particle mixture entrained in or carried by a fluid flow is disclosed. The separator comprises a tubular, elongated body for receiving the fluid flow. At least one and preferably a pair of electrodes may be provided to create an electric field in at least a portion of the body through which the fluid flow passes, and at least one partition defines first and second channels for receiving the flow downstream of the portion of the body including the electric field. In one embodiment, the electrode is oriented such that a direction of an electrical field force acting on particles having a selected charge passing through the electric field is not perpendicular to a direction of gravity. A system incorporating the separator is disclosed, along with a diffuser and related methods.
REFERENCES:
patent: 1071354 (1913-08-01), Schnelle
patent: 2216254 (1940-10-01), Schweitzer, Jr.
patent: 2334540 (1943-11-01), Buffham
patent: 2937875 (1960-05-01), Mason et al.
patent: 3154682 (1964-10-01), Hartz et al.
patent: 3191630 (1965-06-01), Demyan
patent: 3366388 (1968-01-01), Del Raso
patent: 3493109 (1970-02-01), Carta et al.
patent: 3853750 (1974-12-01), Volsy
patent: 4137156 (1979-01-01), Morey et al.
patent: 4207083 (1980-06-01), Gelhaar et al.
patent: 4790538 (1988-12-01), Gettelfinger
patent: 4839032 (1989-06-01), Whitlock
patent: 4874507 (1989-10-01), Whitlock
patent: 4943368 (1990-07-01), Gilbert et al.
patent: 5046741 (1991-09-01), Ahn
patent: 5333876 (1994-08-01), Goto
patent: 5431403 (1995-07-01), Pelz
patent: 5518245 (1996-05-01), Nelson
patent: 5755333 (1998-05-01), Stencel et al.
patent: 5885330 (1999-03-01), Lee
patent: 5938041 (1999-08-01), Stencel et al.
patent: 5944875 (1999-08-01), Stencel et al.
patent: 6074458 (2000-06-01), Bittner et al.
patent: 6090189 (2000-07-01), Wikstrom et al.
patent: 6146284 (2000-11-01), Russell
patent: 6163098 (2000-12-01), Taylor et al.
patent: 6323451 (2001-11-01), Stencel et al.
patent: 6398848 (2002-06-01), Ridgeway et al.
patent: 6498313 (2002-12-01), Stencel et al.
PuttGolf™ Adjustable Indoor Putting GreenSet-Up Instructions, p. 1-7, Sep. 2000.
Ban, H., “An Experimental Study of Particulate Charge Relating to Electrostatic Dry Coal Cleaning”, Ph.D Dissertation, University of Kentucky, 1994.
Kyper, T.N., Brendel, G.F., Golden, D.M., “Institutional Constraints to the Beneficial Use of Coal Fly Ash”, Proc. Tenth Intn'l Ash Use Sym., vol. 2: Ash Use R&D/Clean Coal By-Products, Jan. 1993.
Cochran, J.W., Boyd, T.J., “Benefication of Fly Ash by Carbon Burnout”, Proc. Tenth Intn'l Ash Use Sym., vol. 2: Ash Use R&D/Clean Coal By-Products, Jan. 1993.
Gurupira, T. Z., C. L. Jones, A. Howard, C. Lockert, T. Wandell and J. M. Stencel, “New Products from Coal Combusion Ash: Selective Extraction of Particles with Density < 2”, 2001/InternationalAsh Symposium, Lexington, KY, 2001.
Ghosal, S., S. A. Self, “Particle Size-Density Relation and Cenosphere Content of Coal Fly Ash”, Fuel, vol. 74, No. 4, pp. 522-529, (1995).
Benson, S.A., Jones, M.L., Harb, J.N.., “Ash Formation and Deposition”, Fundamentals of Coal Combusion, ed. L.D. Smoot, (Elsevier, 1993) pp. 299-373.
Hower, J.C., Robl, T.L., “Production of Coal-Combustion By-Products in Kentucky: Trends and Prospects”, J. Coal Quality, Jan.-Mar. 1993.
Butler, W.B., Mearing, M.A., “Fly Ash Beneficiation and Utilization in Theory and in Practice”, Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal II, Proc. Mat. Res. Soc. Sym., Dec. 2-4, 1985, ed. G.J. McCarthy, F.P. Glasser, D.M. Roy, (Materials Research Society, 1986) pp. 11-17.
T.L. Robl, J. Hower, U. Graham and R. Rathbone, Proc., “Influence of Conversion to Low NOX Combustion on Fly Ash Petrology and Mineralogy”, 12th Ann. Intn'l. Pitts. Coal Conf., Sep. 11-15, 1995, pp. 121-125.
Gibbins, J.R.., Williamson, J., “The Origin of Unburnt Carbon in Pulverized Fuel Ash”, Intn'l. Conf. on Coal Science, Banff, Alberta, Canada, Sep. 12-17, 1993.
Ciccu, R., Peretti, R., Serci, A., Tamanini, M., Zucca, A., “Experimental Study on Triboelectric Charging of Mineral Particles”, J. Electrostatics, vol. 23, pp. 157-168, 1989.
Kelly, E.G., Spottiswood, D.J., “The Theory of Electrostatic Separation: A Review, Part II. Pariicle Charging”, Minerals Engineering, vol. 2, No. 2, pp. 193-205, 1989.
Ciccu, R., G. Alfano, P. Carbini, M. Ghiani, N. Passarini, R. Peretti and A. Zucca, “Ore and Coal Processing with the Turbocharger Electrostatic Separator,” Proc. Int't Sym. Adv. Fine Particle Proc., Advances in Fine Particle Proc. (Elsevier, New York), 1990.
Ciccu, R., M. Ghiani and G. Ferrara, “Selective Tribocharging of Particles for Separation,” Powder and Particles, No. 11, 5 (1993).
Whitlock, D.R., “Electrostatic Separation of Unburned Carbon from Fly Ash”, Proc. 10th Int'l. Ash Use Sym., vol. 2: Ash Use R&D and Clean Coal By-Products, Jan. 1993.
Gurupira Tapiwa Zabron
Stencel John M.
King & Schickli PLLC
University of Kentucky Research Foundation
Walsh Donald P.
LandOfFree
Particle separation/purification system, diffuser and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Particle separation/purification system, diffuser and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle separation/purification system, diffuser and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3694552