Coating apparatus – With treatment of coating material – By separation
Reexamination Certificate
2005-08-02
2005-08-02
Lamb, Brenda A. (Department: 1734)
Coating apparatus
With treatment of coating material
By separation
C118S608000, C118S603000
Reexamination Certificate
active
06923865
ABSTRACT:
Techniques for precisely controlling the size of particles in a coating solution delivered to a coating apparatus involve continuous classification of coating particle size using a tangential flow filter assembly. The techniques may be particularly useful in the preparation of coating dispersions for manufacture of magnetic recording media. A classification technique makes use of a tangential flow filter assembly that permits delivery of coating particles below a maximum size threshold to a coating path. The filter assembly may be disposed in a circulation path that includes one or more processing devices to reduce the size of coating particles carried by a coating solution. The filter assembly enables coating particles above the maximum size threshold to be recirculated through the circulation path and subjected to repeated processing to reduce particle size to a desired size range.
REFERENCES:
patent: 2819835 (1958-01-01), Newhall
patent: 3234882 (1966-02-01), Douglas et al.
patent: 3263817 (1966-08-01), Buckley
patent: 3502213 (1970-03-01), Kuribayashi
patent: 3852191 (1974-12-01), Zucker et al.
patent: 4412792 (1983-11-01), LaBorde et al.
patent: 4435133 (1984-03-01), Meulendyk
patent: 4527954 (1985-07-01), Murali et al.
patent: 4533254 (1985-08-01), Cook et al.
patent: 4701112 (1987-10-01), Eisenhut et al.
patent: 5226963 (1993-07-01), Shibata et al.
patent: 5241986 (1993-09-01), Yie
patent: 5260360 (1993-11-01), Mrozinski et al.
patent: 5401899 (1995-03-01), Bryant et al.
patent: 5482077 (1996-01-01), Serafin
patent: 5507624 (1996-04-01), Fehn
patent: 5852076 (1998-12-01), Serafin et al.
patent: 5865029 (1999-02-01), Brieschke
patent: 5879137 (1999-03-01), Yie
patent: 6074700 (2000-06-01), Roitto
patent: 6135069 (2000-10-01), Fenelon et al.
patent: 0792 194 (1997-09-01), None
patent: WO 92/22748 (1992-12-01), None
Huisman H.F., “Dispersion of (Magnetic) Pigment Powders in Organic Liquids,” Journal of Coatings Technology 57(727): 49-56 (1985).
Winkler J. et al., “Theory for the Deagglomeration of Pigment Clusters in Dispersion Machinery by Mechanical Forces. I,” Journal of Coatings Technology 59(754): 35-41 (1987).
Winkler J. et al., “Theory for the Deagglomeration of Pigment Clusters in Dispersion Machinery by Mechanical Forces. III,” Journal of Coatings Technology 59(754): 55-60 (1987).
Winkler J. et al., “Theory for the Deagglomeration of Pigment Clusters in Dispersion Machinery by Mechanical Forces. II,” Journal of Coatings Technology 59(754): 45-53 (1987).
“Advanced Analytical Biochemistry,” NgeeAnn School of Life Sciences and Chemical Technology, www.np.edu.sg/˜dept-bio/biochemistry/aab/topics/aab principles.htm, 5 pages, printed Jan. 20, 2005.
Brandt Daniel W.
Ellis Stanley R.
Erickson Leroy C.
Serafin Mark
Walker Scott A.
Imation Corp.
Lamb Brenda A.
Levinson Eric D.
LandOfFree
Classification of coating particle size does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Classification of coating particle size, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classification of coating particle size will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3462828