Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7571815 | Sieve jigger The aim of the invention is to provide a sieve jigger comprising a sieved-product rocker that can be pivoted upwards and downwards, whose lifting displacement and/or lifting frequency can be controlled beyond previously accepted limits and which does not require vib... | 08/11/2009 |
| 7438188 | Device for use in placer mining operations and method An aggregate material separating device includes a frame with a shaker mechanism. A trough is disposed on the frame and coupled to the shaker mechanism by a shaker spring. A hopper is disposed at an end of the trough and can receive a load of aggregate material. A h... | 10/21/2008 |
| 7262532 | Arrangement with an electronically commutated external rotor motor A motor structure resistant to liquid intrusion features two modules, the first having an electronically commutated external-rotor motor (20), which motor comprises an internal stator (22) that is arranged on a bearing tube (30) and is separated... | 08/28/2007 |
| 6938776 | Method and a device for the separation of particles A method of separating a mixture of particles in a liquid that within chosen limits have different physical property values, wherein the particles to be separated are supplied via a feeder to a screen upon which a layer of facilitating particles is disposed the size... | 09/06/2005 |
| 6866074 | Sand tank A tank assembly for classifying and blending sand products. The tank assembly includes a receptacle adapted to retain slurry at or below an upper level. The receptacle includes a feed end having a receptacle inlet, a discharge end having a receptacle overflow outlet... | 03/15/2005 |
| 6758342 | Cereal grain sorting system and roll sorting machine A cereal grain sorting system includes a wind force sorting device, a rough sorting device and a roll sorting device. The wind force sorting device is operative for selectively sorting light weight foreign materials from feedstock cereal grains. The rough sorting de... | 07/06/2004 |
| 6561359 | Method and apparatus for removing lightweight particulates during processing of a primary material An apparatus and method for removing lightweight particulates during processing of a primary material. The apparatus includes a classification tank having an inlet, an outlet and a plurality of settling stations located therebetween. A slurry of fluid and... | 05/13/2003 |
| 6264039 | Method for precious metal recovery from slag The present invention, therefore, provides stage crushing method for recovering precious metals from slag produced by a coal burning furnace or boiler comprising: a plurality of crushing steps, wherein each crushing step produces slag particles having suc... | 07/24/2001 |
| 6156083 | Coal reclamation systems A method for recovering coal from a mixture containing fine particles of coal, the mixture including fine coal particles, water, and impurities, the method including feeding the mixture to a first liquid/solid separator that removes relatively large piece... | 12/05/2000 |
| 6119866 | Process and device for separation of wanted materials from product mixes which contain floating/absorbent material and metals with a ferromagnetic content Process and device for separation of wanted materials from product mixes which contain floating/absorbent material and metals having a ferromagnetic content, particularly from ink cartridges by means of the following steps: coarsely comminuting the produc... | 09/19/2000 |
| 5817230 | Method for improving the pozzolanic character of fly ash A method for improving the pozzolanic character of fly ash includes the steps of first hydraulically classifying and then flotation separating the fly ash in order to reduce particle size distribution and remove carbon. The method also includes the steps ... | 10/06/1998 |
| 5720393 | Method and apparatus for the separation of manure and sand A method and apparatus for the separation of manure (104) and sand (102) in a sand and manure mixture (100) is described. The apparatus (10) of the first embodiment includes a tank (12) with an upper grate (22), a lower grate (20), an air supply tube (30)... | 02/24/1998 |
| 5476177 | Sluice trap A material classification device for separation of solid materials, having a relatively high specific gravity, from a stream of fluid and solid material. The device is particularly suited for the extraction of gold from alluvial material. The device gener... | 12/19/1995 |
| 5361910 | Modified mineral jig The present invention provides an improved design for the hindered settling bed within a mineral jig. The hindered settling bed contains relatively low density materials that can be used in conjunction with high density materials to aid in the separation ... | 11/08/1994 |
| 5273162 | Method and apparatus for separating material from a fluid A method and apparatus for separating high density materials from less dense materials suspended in a fluid within a conduit. A pump generates carrier fluid motion which is fed through the conduit. Solids from a placer deposit are mixed with the carrier f... | 12/28/1993 |
| 5246116 | Method and apparatus for separation and recovery of the components from foil-containing laminates A method for the separation and recovery of foils, in particular aluminum foils, and the other components in waste foil-containing laminates includes subjecting the waste laminates to agitation in a heated polyalkylene glycol polymer solution. The thus he... | 09/21/1993 |
| 5024770 | Waste separating, processing and recycling system An apparatus and process for separating waste material requiring use of ground water for processing in a wet mill a drum separator in combination with purification and recycling, routing recycled water to a biomonitoring fish pond and use of a system wash... | 06/18/1991 |
| 4839034 | Beneficiator for recovery of metal fractions from particulate gangue Apparatus is provided to separate heavier metal particles from lighter particles gangue in a fluidic medium by gravity and fluid flow. A vertical container provides a lower fluid input chamber that communicates through a medial structure providing a plate... | 06/13/1989 |
| 4529506 | Method for cleaning fine coal A method for cleaning fine coal is provided which includes: mixing the coal with a fluid of such a specific gravity that clean coal particles would float while refuse particles would sink therein, pretreating the coal-fluid slurry by adding a surfactant, ... | 07/16/1985 |
| 4505811 | Mineral processing apparatus Mobile mineral processing apparatus comprising at least one module having a base, frame structure and a roof. The base is mounted on skids or the like whereby the module can be moved from place to place at will. Also, each module is demountable for conven... | 03/19/1985 |
| 4219409 | Inlet line deflector and equalizer means for a classifying cyclone used for washing and method of washing using deflectors and equalizers An inlet line deflector and equalizer means for a cyclone for washing crushed and sized coal with water wherein low density (1.6 or less) washed coal particles escape through the outlet pipe above the bottom collector through the box of the cyclone while ... | 08/26/1980 |
| 4217207 | Continuous method of cleaning a slurry of crushed raw coal A crushed raw coal washing plant using a plurality of deflector-fitted centrifugal cyclones to produce a washed and dried mixture of clean coarse and fine coal, and fine coal alone, with means to remove refuse and means to recycle clean fine coal slurry b... | 08/12/1980 |
| 4203831 | 6/30 Coal washing plant Raw coal is fed into the upper end of an inclined internally scrolled barrel. Washed coal is screened after leaving the barrel, and the material passing the screen is divided into two batches, the coarser being returned to the barrel, the finer being sepa... | 05/20/1980 |
| 4136018 | Vortex separator with coaxial inlet and lightweight reject pipelines Method and apparatus for pulping and grading waste material in which the waste material is introduced into a cylindrical chamber having two end walls with a perforate screen in one of the end walls. An impeller in the chamber adjacent the perforate screen... | 01/23/1979 |
| 4128474 | Process for cleaning and dewatering fine coal A wet mechanical process is described for cleaning, upgrading and dewatering fine coal. The process provides for forming an aqueous feed slurry of fine coal and its associated contaminant particles wherein all particles have a particle portion size of les... | 12/05/1978 |
| 4101419 | Separator for separating higher density metal values from earthen material A separator for separating higher density metal values such as particles of gold from a mixture of gold particles and earthen material. The separator includes an upwardly divergent hollow cone and a hollow, transparent column, the transparent column being... | 07/18/1978 |
| 4076614 | Inclined, vibrated, sifter and stratifier with gates Heavy metal values are separated from particulate material such as, for example, river sand or gravel, by depositing the material in a vibrating, inclined chute, where the coarser elements of the material are separated by a screen, and the material is the... | 02/28/1978 |
| 4070274 | Coarse concentrated iron ore for catalytic purposes An iron ore concentrate is made having at least 60% -6 to +14 mesh and no more than about 1% -20 mesh, by a process preferably employing a small counterflow sizer on a product obtained from the concentrate of a spiral concentrator through which is process... | 01/24/1978 |
| 4067953 | Process for upgrading ores containing baddeleyite Minerals, for example, zirconium minerals, are subjected to a chemical process of comminution, in particular with the aid of strong acids. These acids dissolve the carbonatic and silicious cements which hold together the crystalline forms of different min... | 01/10/1978 |
