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| Number | Title | Issue Date |
| 7306668 | Kaolin pigment having high brightness and narrow particle size distribution and method of preparation therefor The present invention provides high brightness kaolins exhibiting a Brightness (GE) of at least about 90.0. The hydrous kaolin pigments of the present invention may also have, inter alia, a steepness index (d30/d70×100) of at least about 39 an... | 12/11/2007 |
| 7122080 | Integrated process for simultaneous beneficiation, leaching, and dewatering of kaolin clay suspension The present invention provides an improved method of beneficiating and dewatering kaolin clays. The product of the improved process is a brightened, dewatered kaolin, suitable for use in pigments and paper coating compositions. The improved beneficiation process pro... | 10/17/2006 |
| 6719144 | Method of separating oxide from dross, device for separating oxide from dross, and jet solder tank When a printed board is soldered by a dipping method, a great deal of dross is generated on a jet solder tank. The dross is a mixture of melted solder and oxide. A worker takes out the dross from the jet solder tank, and throws it away. Thus, a large amount of the s... | 04/13/2004 |
| 6446812 | Removal of elemental phosphorus from mixtures with other solids Disclosed is a separator for separating a meltable solid from a mixture with other solids. The separator has a tank for holding a fluid; a container at least partially inside the tank, made at least in part of a screen through which the fluid can pass and... | 09/10/2002 |
| 6206199 | Method and an apparatus for recycling different components in a multiple layer material In order to recover the various components of multiple layer materials, a method uses a refiner or disperser including mutually opposing rotating discs having material engaging surfaces or elements such as teeth. The method includes: adjusting a gap betwe... | 03/27/2001 |
| 6149012 | System and method for cleaning and recovering plastic from coated fiber polywaste A method for recovering densified plastic from mixed waste containing plastic and less than about 15 weight percent paper, and having a density ranging from about 2 to about 3 pounds per cubic foot, the method comprising the steps of shredding the mixed w... | 11/21/2000 |
| 6145666 | Cleansing contaminants from a heterogeneous material using a sorption agent There is described a process for cleansing contaminants, such as oil, PCB, PAH, heavy metals and the like, from a heterogeneous material, such as sand, gravel, earth, oil gravel, asphalt, drill borings ("kaks") and the like. More specifically the inventio... | 11/14/2000 |
| 5738222 | Process for separating solids mixtures of differing density, separating liquid and device for implementing the process A process for separating mixtures of solids of different density, uses a separating liquid and a device for implementing the process. The process is especially suitable for the analysis and technical preparation of waste plastics, glass and electrical scr... | 04/14/1998 |
| 5632380 | Ferrous material recovery system A system for recovering ferrous metal components from waste materials includes a first magnetic separator for magnetically separating ferrous metal components from waste material and an impacting device for dislodging residual waste material from the surf... | 05/27/1997 |
| 5415671 | Method for cleaning sod A method for cleaning sod being transported on a perforate conveyor belt which includes at least one vibratory position and a powered brush position for removing the earth from the sod. This method and apparatus may be attached to a farm vehicle at the so... | 05/16/1995 |
| 4765886 | Method for separating sea plants A mixture of sea plants, some of which have compacted sticky characteristics and others of which exhibit hard incompactible fronded characteristics is separated into its components by pressing against a perforated surface to extrude the compacted sticky m... | 08/23/1988 |
| 4106627 | Method and apparatus for use in separation and recovery of non-magnetic metal pieces An apparatus for use in separation and recovery of pieces of different materials according to the difference in electric conductivity of each kind of materials, by utilizing the interaction between a magnetic field, induced by the eddy current and an exte... | 08/15/1978 |
| 4025573 | Separation process Para-xylene is obtained from a eutectic mixture by chilling the mixture and separating the resulting crystals by crystal classification.... | 05/24/1977 |
| 3939063 | Loose flap detector and case ejector system for wrap-around paperboard cartons Method and apparatus for detecting insecurely glued closure flaps on wrap-around paperboard cartons and for diverting defectively sealed cartons from the packaging line. A striking device in the form of an impact roller strikes the leading edge of each ca... | 02/17/1976 |
