Class 209/235 - Special applications

Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Sifting devices employed for separating particular materials
No. of applications: 39
Last issue date: 05/03/2012

Application No.	Application Title	Issue Date
20120103876	Sand Sifter The present invention is directed to a method and a vehicle designed for cleaning beaches that have been contaminated with substances such as tar balls. The device utilizes an inclined screen assembly on a vehicle and a pivoted hopper supported below the lower end of th...	05/03/2012
20120080361	PARTICULATE NANOSORTING STACK Methods and devices for isolating and sorting nanoparticles are disclosed herein. Nanopores of a desired size can be formed in silicon dioxide membranes and used as filters to separate nanoparticles. Devices are also provided herein for sorting nanoparticles with multip...	04/05/2012
20120024763	SCREEN The present invention relates to a method for the production of a screen and to a screen for the treatment of a fibrous material suspension suitable for the production of a fibrous material web, the screen including at least two screen layers that are connected to each ...	02/02/2012
20120018354	Method of Separating Mill Scale from a fluid A process of separating a fluid and mill scale particles from mill slag can include: 1) Putting the mill slag onto a vi...	01/26/2012
20120000832	Platinum Group Metal Recovery From Powdery Waste The invention relates to a method for increasing the concentration of platinum group metals in urban waste material. The method comprises obtaining particles of urban waste material; screening the particles of urban waste material by size, selecting particles of urban w...	01/05/2012
20110309200	Apparatus, Satellite and Method for Trapping High-Speed Particles An apparatus for trapping high-speed particles, such as space debris, is provided. The apparatus includes a first front tapping surface and at least one rear trapping surface. The front and rear trapping surfaces are arranged substantially parallel to each other and are...	12/22/2011
20110287307	Alkaline Electrochemical Cell with a Blended Zinc Powder An electrochemical cell with a blended zinc powder is disclosed. The blended zinc powder includes selected portions of a first zinc powder and a second zinc powder. In a preferred embodiment, the first and second powders are divided into groups based on ranges in their ...	11/24/2011
20110284430	METHOD OF MANUFACTURING A ROTOR FOR A SCREENING APPARATUS, A ROTOR AND A TURBULENCE ELEMENT FOR A ROTOR The present invention relates to a method of manufacturing a rotor for a screening apparatus and a rotor structure for a screening apparatus. The rotor structure is particularly suitable in screening fiber suspensions of the pulp and paper industry. The apparatus relate...	11/24/2011
20110215033	SCREENING MAT FOR VIBRATING SCREEN DEVICES A screening media for use in vibrating screen devices that fractionize crushed stones or gravel. The screening media is made by extruding a fiber-reinforced rubber or polymeric material to form a strip in a length longer than that needed to make individual screening mat...	09/08/2011
20110215032	VIBRATING SCREEN DEVICE HAVING MODULAR SCREENING MEDIA A vibrating screen device for fractionizing stones and gravel includes a support structure, a plurality of carriers mounted on the support structure, and a plurality of screening mats removably mounted on the carriers in side-by-side relationship. Each carrier includes ...	09/08/2011
20110204169	SCREEEN ASSEMBLY FOR A MINERAL PROCESSOR A screen assembly for use in a minerals processing apparatus comprising an elongate separation screen defining an upper surface having a material reception area towards a first end and a material delivery area towards a second end, so arranged that in use material recei...	08/25/2011
20110114542	VIBRATORY SEPARATOR MOTION A vibratory separator (100) including a first actuator (107A) coupled to a basket (105) and a second actuator (107B) coupled to the basket. Additionally, the vibratory separator (100) includes a motion control switch operatively connec...	05/19/2011
20110073532	Mechanized Screener A mechanized screener including one or more wire mesh screens installed onto a bucket loader. The bucket loader used to scoop up gravel and dirt. While the gravel and dirt is in the bucket loader, the screen separates the gravel from the dirt. The bucket would be a mech...	03/31/2011
20110031167	METHOD AND APPARATUS FOR SCALPING FOOD PIECES A method and apparatus for separating multiple food pieces and removing clumps from food pieces in order to process individual pieces for subsequent packaging includes a vibrating conveyor bed which receives a substantially continuous supply of a dried product, such as ...	02/10/2011
20110005979	PROCESSING WASTE A waste processing apparatus for separating a target material from other materials lighter than the target material and dust, and for classifying the target material into one or more fractions, comprising a housing having an opening for the input of waste, a first end a...	01/13/2011
20100270216	SHALE SHAKER A shale shaker for separating solids from solids laden drilling fluid is disclosed as having a basket with a scalping screen deck, at least one first screen deck and at least one second screen deck. The basket further may have a flow tray arranged between said scalping ...	10/28/2010
20100268011	PREPARATION AND CONDITIONING OF SEDIMENTARY MATERIALS A flexible process for the preparation and conditioning of sedimentary materials. The degree of decontamination of these dredged materials is enhanced by the use of chemical indicators. Based upon the level of contamination contained within this material the process is ...	10/21/2010
20100256804	System and method for separation of food particles A system and method for separating food particles is disclosed here. The system may include means for receiving food particles to be separated, means for screening the food particles into fine and coarse particles, means for controlling the amount of output fine particl...	10/07/2010
20100219110	Sifting Screens A frame over which woven wire mesh is to be stretched and secured to form a sieving screen and which can be used to screen solids from drilling mud recovered from down-hole when drilling for oil or gas. The frame is a rectilinear moulded plastics frame having edge regio...	09/02/2010
20100124716	METHOD OF MANUFACTURING TONER, TONER, SCREENING DEVICE, AND METHOD OF RECYCLING TONER A method of manufacturing a toner including manufacturing a coarse toner containing a binder resin and a coloring agent, and screening the coarse toner with a screen device including a top screen having an opening 5 of from 26 to 43 μm and a bottom screen situated belo...	05/20/2010
20100122941	SPIRAL MODUL FOR A TROMMEL SCREEN The invention concerns a spiral module (1) for a trommel screen comprising a flat part (5) that transports ore and that is designed as a product that becomes worn, with an elastic cladding (27) that functions as wear lining, intended to interact wit...	05/20/2010
20100116720	APPARATUS AND METHOD FOR SIFTING FEEDSTOCK The invention relates to an apparatus for sifting feedstock, comprising: a. a static sifter that has a ventilated bottom which is oriented at an angle to the vertical and is penetrated by sifting gas; b. an inlet for feeding the feedstock to the ventilated bottom; c. an...	05/13/2010
20100116719	METHOD AND DEVICE FOR SEPARATING OR CLASSIFYING MATERIAL TO BE FED The device according to the invention for separating or classifying material to be fed into at least two different grain fractions comprises a screen device, which is formed by rotatable elements, particularly a roller table screen, wherein at least one finer grain frac...	05/13/2010
20100071918	Beach-cleaning system for separating litter from sand, trailer incorporating same, and method of using same A box-shaped beach-cleaning trailer is configured to be loaded with, and collectively carry beach-cleaning equipment and a litter collection station. The beach-cleaning equipment are towed by a vehicle to collect litter on the sands. The litter collected by the beach-cl...	03/25/2010
20100025306	ADJUSTABLE COAL SCREENING APPARATUS A screening and sorting assembly for coal particles includes a bin for receiving crushed coal. The bin is provided with a weir over which the coal particles are passed onto a pivoted screen assembly having a plurality of openings therethrough for sorting the coal partic...	02/04/2010
20090277818	COOLING AND CLASSIFYING APPARATUS FOR PELLETIZED PRODUCT PROCESSING A cooler for particulate product includes a substantially enclosed housing. A first cooling screen is disposed in the housing and is configured to receive the product. The first cooling screen is configured to move the product along a surface by gravity when the first c...	11/12/2009
20090266747	Method for Grading Water-Absorbent Polymer Particles A process for classifying water-absorbing polymer beads, wherein the polymer beads are separated into n particle size fractions by means of at least n screens and n is an integer greater than 1....	10/29/2009
20090261023	Method for the Classification of Water Absorbent Polymer Particles A process for continuously classifying water-absorbing polymer beads by means of at least one screen, at least one screen having at least one guide device on the screen surface....	10/22/2009
20090261022	SYSTEM, METHODOLOGY, AND PRODUCT TO SORT, ORGANIZE, AND STORE TOY BUILDING/CONSTRUCTION SETS A system, methodology, and product to sort, organize and store individual members of building/construction toy sets utilizing a multi-level system of bins with sieves at different heights using user applied forces and gravity to automatically sort and organize pieces in...	10/22/2009
20090161102	AUTOMATED SYSTEMS AND ASSEMBLIES FOR USE IN EVALUATING AGRICULTURAL PRODUCTS AND METHODS THEREFOR Methods and assemblies are provided for evaluating plants for presence of pests. Methods may include separating pests from a plant to produce a sample of pests for analysis, illuminating the sample to produce emitted light from the sample, and comparing the emitted ligh...	06/25/2009
20080251432	Screen assemblies utilizing screen elements retained in perforated troughs A screen assembly is disclosed for use with vibratory separators. The screen assembly includes a structural frame mounted to a vibratory separator into which a plurality of lightweight and flexible screen elements are inserted into multiple rows of perforated troughs wh...	10/16/2008
20080237095	SUPERIMPOSED MOTION DRIVE A vibratory separator including a frame, a screen configured to connect to the frame, a first actuator coupled to the frame, and a second actuator coupled to the frame, wherein the first actuator imparts a high frequency motion to the frame, and wherein the second actua...	10/02/2008
20060260987	RF shielding gasket for vibratory separator A gasket for a shaker screen in a vibratory separator includes an outer peripheral section including an end section from which a upper lip segment and a lower lip segment project inward to generally define a U-shaped channel, wherein the outer peripheral section is form...	11/23/2006
20060180507	Method for reclaiming concrete A method and apparatus for reclaiming uncured concrete are disclosed. Uncured concrete containing gravel, sand and cement is mixed with water in a concrete hopper and the resultant slurry flows to a screen where the gravel is separated from the rest of the slurry materi...	08/17/2006
20060180505	Separation method and apparatus incorporating materials having a negative poisson ratio A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. T...	08/17/2006
20060032790	System and process for break detection in porous elements for screening or filtering A detector for breaks in screens and filters employed in material separators includes a transmitter of RF signals and a receiver of RF signals located to either side of a screen. The separator includes a chamber having a barrier to RF signals with a path through the bar...	02/16/2006
20050247603	Retainer for an electronic communication device to detect breaks in porous element separator A retainer holds an electronic communication device used to detect breaks in porous elements of material separators to the frame of the separator. The retainer includes a ferrule affixed around a hole through the frame of the separator, a housing made from an RF transmi...	11/10/2005
20050172366	Method for corn seed sizing Flat screens are used to size corn seed into sizes separated by width and thickness. By combining these screens into modular machines, multiple sizes can be made inside each machine. By combining several modular machines, two to eight sizes or more can be made in the as...	08/04/2005
20050035031	Separation method and apparatus incorporating materials having a negative poisson ratio A method of separating at least part of one or more components from a mixture of components includes exposing the mixture to a porous barrier, the barrier being formed of a material structure having, or behaving in the manner associated with, a negative Poisson ratio. T...	02/17/2005

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Class 209/235 - Special applications