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| Number | Title | Issue Date |
| 5174512 | Grinding process and a continuous high-capacity micronizing mill for its implementation A continuous micronizing mill for granular material consisting of a rotary drum with a high length/diameter ratio, divided by separator baffles into several grinding chambers in which grinding loads having a progressively decreasing body size are placed a... | 12/29/1992 |
| 5129953 | Method for improving bulk density and flowability of calcined kaolin clay products The bulk handling characteristics of a calcined kaolin clay powder, including the bulk density and flowability, are significantly improved by forming an aqueous slurry of the calcined kaolin clay powder and spray drying the slurry.... | 07/14/1992 |
| 5076507 | Variable density grinding media A grinding mill having a rotatable grinding chamber within which is a body of elongate grinding members that have a longitudinal axis substantially longer than the maximum transverse dimension thereof. The mill is arranged in such a way as to retaining th... | 12/31/1991 |
| 5065946 | Media agitating mill and method for milling ceramic powder A method for milling ceramic powder and making a sintered body from the powder produced by such method are disclosed. A preferred embodiment includes wet-milling at least one ceramic powder by a media agitating mill wherein the volume of liquid is not mor... | 11/19/1991 |
| 5048762 | Dispersion apparatus Apparatus for dispersion of solids in liquids including two relatively movable elements arranged so as to define a dispersing volume therebetween, a multiplicity of separate generally cylindrical dispersing elements disposed within the dispersing volume, ... | 09/17/1991 |
| 5033682 | Grinding process A process of grinding ceramic materials such as zirconia comprises grinding in an agitated media-type mill in the presence of a dispersant, the process being characterized in that the grinding media has a particle size of from 0.8 3.0 mm, and in that the ... | 07/23/1991 |
| 5022592 | Magnetic media mill Media mill having a magnetic circuit of magnetic impellers on a shaft, magnetized media, and a magnetizable outer shell which provides improved efficiency.... | 06/11/1991 |
| 5015299 | Method and apparatus for the removal of deposits from the inner surfaces of horizontal cylinders Process and apparatus are provided for the removal of a deposit from the inner surface of a rotating cylinder having a horizontal or inclined longitudinal axis, which comprises introducing a body having a substantially symmetrical concavo-convex silhouett... | 05/14/1991 |
| 5004165 | Dispersion apparatus Apparatus for dispersion of solids in liquids including two relatively movable elements arranged so as to define a dispersing volume therebetween, a multiplicity of separate generally cylindrical dispersing elements disposed within the dispersing volume, ... | 04/02/1991 |
| 4860957 | Treatment of middlings Regrinding of middlings in a mineral-product dressing process of the kind in which the middlings are reground in order to crush individual half-grains and release valuable mineral therefrom, is carried out in a mill using an agitated grinding medium. The ... | 08/29/1989 |
| 4840686 | Bainitic core grinding rod A carbon or alloy steel heat treated grinding rod having improved wear resistance and breaking resistance for use in a rotating grinding mill. The surface of the rod has a martensitic microstructure having a hardness of at least HRC 55. The core of the ro... | 06/20/1989 |
| 4736547 | Steel abrading elements for mass finishing of workpieces and methods of making and using same An abrading element for mass finishing of workpieces such as vibratory finishing comprises an elongated metallic rod of generally circular or other curvilinear cross section with serrations extending over substantially its entire periphery along its elong... | 04/12/1988 |
| 4712333 | Tumbling media A tumbling media element for use in tumbling non-magnetic workpieces includes a body portion formed of a non-magnetic material and a magnetic insert disposed within the body portion. The insert renders the body portion suitable for magnetic sorting techni... | 12/15/1987 |
| 4670370 | Process for preparation of color liquid toner for electrostatic imaging using carbon steel particulate media Process for preparation of toner particles for electrostatic imaging comprising A. dispersing at an elevated temperature in a vessel a thermoplastic resin, a dispersant nonpolar liquid having a Kauri-butanol value of less than 30 and a colorant other than... | 06/02/1987 |
| 4634062 | Forged steel grinding element for ball milling A forged grinding element made of steel for ball milling consisting of a steel alloy containing from 0.7 to 1.0 weight percent of manganese; 0.7 to 2.2 weight percent of chromium; 0.3 to 0.6 weight percent of molybdenum, 0.5 to 2.2 weight percent of nicke... | 01/06/1987 |
| 4602416 | High strength crushing bar and a process for manufacturing The invention provides a ferrous metal crushing bar, coming directly from casting with controlled solidification, characterized in that it has a fine grain surface structure and a core with radially orientated dendritic structure, in that it comprises, in... | 07/29/1986 |
| 4547534 | Method to disperse fine solids without size reduction The present invention is a method to disperse fine solids in a resin binder matrix by use of a sand mill having non-metallic discs and containing zirconium oxide milling media. The method of the invention will disperse the fine solids without reduction of... | 10/15/1985 |
| 4430279 | Process for producing zirconia yttria grinding media used for grinding magnetic coating powder This invention discloses zirconia-containing grinding media in the preparation of magnetic disc coating and method for producing such grinding media. The grinding media essentially consists of zirconia-sintered body containing 3.6% to 8.0% by weight of yt... | 02/07/1984 |
| 4403742 | Use of rod mill for initial stage of solder glass grinding A dramatic reduction in the time required to fine-grind high borate solder glasses is achieved. In the prior art method, the glass is ball-milled in the presence of an amine for about seven days or more. It has now been discovered that by first rod-millin... | 09/13/1983 |
| 4369926 | Method and apparatus for grinding granular materials The invention relates to a method of and apparatus for dry grinding a granular material in a grinding tube mill (1) having a final grinding compartment (2) and one or more preceding grinding compartments (3) containing grinding bodies. The material, after... | 01/25/1983 |
| 4332354 | Process for preparing transparent iron oxide pigment dispersions This invention relates to a process for preparing transparent iron oxide pigment dispersions. The dispersions are prepared by milling a mixture of iron oxide pigment and a liquid vehicle in a bead mill containing glass beads as the grinding media. The pig... | 06/01/1982 |
| 4313574 | Apparatus for the activation of cement An apparatus for the activation of cement comprises at least one electromagnetic particle size reducer having a common reducer hopper at the inlet ensuring a gravity feeding of cement to the reducer, and a series sequence including a receiving hopper havi... | 02/02/1982 |
| 4262851 | Process for converting crude and/or coarsely crystalline perylenetetracarboxylic acid diimides to a pigmentary form A process for converting a crude, coarsely crystalline perylene-3,4,9,10-tetracarboxylic acid diimide of the formula ##STR1## where A is unsubstituted or substituted phenyl, an unsaturated 5-membered or 6-membered heterocyclic ring which contains one... | 04/21/1981 |
| 4226634 | Process for preparing pigment compositions Pigment compositions including nickel titanium yellow or chromium titanium yellow as an inorganic component together with an organic pigment component impart better gloss and/or hiding power to organic coatings containing 10% or more of the compositions i... | 10/07/1980 |
| 3942727 | Grinding plant A grinding plant for autogenous or semi-autogenous grinding of ores in particular, in separate mills in two steps. The second step uses material from the first step, which is provided with two outlets. The first outlet has holes for discharging relatively... | 03/09/1976 |
| 3934825 | Process for the wet grinding of materials A process is disclosed for the wet grinding of a material such as chalk comprising the steps of preparing a suspension containing material particles no coarser than 43 microns and grinding the material in suspension using grinding bodies having a density ... | 01/27/1976 |
