| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 209044000 | Sifting and stratifying | 8 |
| 20080257788 | Device and Method for Separating a Flowing Medium Mixture Into Fractions - The invention relates to a device for separating a flowing medium mixture into at least two fractions, comprising rotating means, means for physically increasing the difference in mass density of the fractions for separating, a feed for medium and a first outlet for discharging one of the fractions of the separated medium mixture. The invention also relates to a method for separating a flowing medium mixture. | 10-23-2008 |
| 20090078615 | Sluice assembly for separating heavy particles from slurry - A sluice assembly for separating heavy particles from slurry is provided. The sluice assembly includes one or more sluice boxes having decks made of plastic having a Shore D hardness between 50-75, a static coefficient of friction less than 0.3 and a kinetic coefficient of friction less than 0.2. In a preferred embodiment, the sluice assembly includes a pair of sluice boxes in which a top sluice box is positioned above the bottom sluice box so that slurry flowing from the downstream end of the first sluice box is received by the upstream end of the bottom sluice box. The bottom deck includes tapered riffles which are arranged to provide “V” shaped diverters for diverting heavier particles for collection. The sluice box upper deck may include laterally extending riffles for collection of heavier particles. | 03-26-2009 |
| 20090120846 | Shale shakers with cartridge screen assemblies - A screening apparatus for separating components of a material by vibratory separation which, in certain aspects, includes a vibratable box connected via vibration isolators within a container, the box including screening apparatus thereon or the vibratory separator having replaceable screening cartridges within a container. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b). | 05-14-2009 |
| 20100193406 | Equipment for use in the extraction of placer gold from gravel and sand deposits - A portable device for the separation of gold from other materials commonly found in placer deposits of gravel, sand, etc. Including an upper tray ( | 08-05-2010 |
| 20100236993 | SLUICE BOX AND METHOD OF USE - A portable sluice box for efficient processing and classification of alluvial sand, gravel, detritus, or classification of rock that has been mined and crushed. Sluice having three stages of material classification including, a movable primary screen, viewable secondary screen, distributor box with flow control baffle, laminar flow stratification trough, and cleanable bottom riffle system. | 09-23-2010 |
| 20120000834 | Collapsible sluice box - A folding sluice box assembly includes a plurality of generally U-sectioned trough segments having their end portions nested in size progression and hinged to each other to form an overlap of the received portion and the receiving portion. A deformation in the bottom surface of a received portion is aligned on full pivotal extension for mating receipt in a conforming bottom surface opening in the receiving portion, thus interlocking of the assembly into its working configuration. When thus extended the edge of a resilient mat positioned on the bottom surface of the receiving segment abuts the edge of the received segment to effect a substantial seal therewith. | 01-05-2012 |
| 20150108042 | ADVANCED SOLID WASTE SORTING SYSTEMS AND METHODS - The method and systems efficiently extract recyclable materials from a mixed solid waste stream. The methods and systems use sizing, density and dimensional separation to produce intermediate waste streams that are enriched in particular recyclable materials. The recyclable materials can then be efficiently sorted from the individual intermediate streams using mechanized sorting equipment. | 04-23-2015 |
| 20150136663 | METHOD AND SYSTEM FOR SEPARATING ALUMINUM AND MAGNESIUM FROM ASR ZORBA - Processing automobile shredder residue (ASR) zorba to separate aluminum and magnesium from the other non-ferrous metals. The system and method employs a destoner to separate the magnesium and aluminum from other non-ferrous metals in the ASR zorba. The resulting magnesium and aluminum product may be further processed by a destoner to separate the aluminum from the magnesium. The ASR zorba may be segregated by size prior to processing in the destoner. | 05-21-2015 |
