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| Number | Title | Issue Date |
| 7438244 | Method and apparatus for separation and recycling plastic An apparatus and method for separating contaminated plastic material from various types of contaminants, including paper, includes a grinder for reducing the size of the contaminated plastic material to a reduced size of pieces and an eductor for receiving the piece... | 10/21/2008 |
| 7325757 | Plastics recovery system A transportable system for separating materials in a waste stream. An arrangement of separation and grinding devices is mounted on a transportable platform. The devices are configured and arranged to produce three or more product streams from a plastic-rich feed mix... | 02/05/2008 |
| 7258291 | Destructive device, foam gas collecting device, and foam gas separating and collecting system A destructive device, wherein treated material (1) including a foam body is pre-compressed in thickness direction and fed to the opposed part of a pair of compression rolls (21, 22), partition walls forming independent air bubbles in the foam body is d... | 08/21/2007 |
| 7252251 | Method for preconcentration of organic synthetic materials derived from shredding of end-of-life durable goods Process for pre-concentration of recoverable polymer materials formed from residues from grinding consumer durable goods at the end of their lives such as automobiles, computer equipment and household appliances, consisting of treating the residue by steps in sequen... | 08/07/2007 |
| 7172143 | Method and plant for separating polymeric materials A method for recycling polymeric materials, including a mechanical separation step (B), a first density separation step (C), an intensive cleaning step (E), and a second density separation step (G, V) is described. Additional separation steps, such as a third densit... | 02/06/2007 |
| 7115671 | Process for recovering monomeric units of a nylon from whole carpet The invention relates to a process for recovering monomeric units of a nylon from carpet material. The carpet material includes fibres containing nylon bound to a backing containing one or more non-nylon components. The carpet material contains between 15 and 35 wt.... | 10/03/2006 |
| 7107661 | Method of recycling printed circuit board The present invention provides a method and apparatus of recycling a printed circuit board for separating and retrieving a metallic material, which includes a printed metallic material, and an insulating material, both composing the printed circuit board. Both the m... | 09/19/2006 |
| 7097044 | Dry separation of contaminants from polyester materials A method for separating polyester materials from contaminants is disclosed suitable for, for example, a polyester recycling system. The method is a dry separation method and includes rapidly spinning a mixture of polyester and contaminants within a cleaning chamber.... | 08/29/2006 |
| 7014132 | Method and plant for separating polymeric materials A method for recycling polymeric materials, including a mechanical separation step (B), a first density separation step (C), an intensive cleaning step (E), and a second density separation step (G, V) is described. Additional separation steps, such as a third densit... | 03/21/2006 |
| 7010248 | Toner recycling method and toner recycling system A toner recycling method and a toner recycling system use two personal computers and a display. A personal computer carries out management of information of toner, which is collected at a toner collection site. Another personal computer generates recycling informati... | 03/07/2006 |
| 6988682 | Method and system for utilizing waste Waste that contains fibers and combustible material is slushed in a continuous-operation high-consistency pulper (10) to suspend in water the fibers contained in the waste. From the pulper (10) are discharged substantially continuously a fiber suspensi... | 01/24/2006 |
| 6974097 | Method and apparatus for sorting recyclable products A method for recovering fuel substance and providing an alternative periodic cover material for landfills by separating materials in a salvage operation. A non-sorted material stream including metallic and non-metallic components, which preferably includes automobil... | 12/13/2005 |
| 6945484 | Method and apparatus for processing municipal waste A method for processing municipal waste substantially reduces the volume of material to be disposed into a landfill by increasing the volume of materials of value collected from the municipal waste and by composting the remaining materials to create a salable produc... | 09/20/2005 |
| 6793164 | Process for removing synthetic-grass floorings, corresponding use and product The process applies to synthetic-grass floorings of the type comprising a sheet substrate with a plurality of filiform formations extending from the substrate to simulate natural-grass cover or turf, the substrate and the filiform formations being made of plastic ma... | 09/21/2004 |
| 6749138 | Granulator A granulator for reducing the size of plastic particles to facilitate the removal of contaminants therefrom. The granulator includes an upper chamber and a lower chamber defined by an exit screen. The upper chamber includes a rotary shear and an air handling system ... | 06/15/2004 |
| 6663954 | Method of reducing material size The present invention relates to a method of reducing particle size by the use of a supercritical fluid, generally carbon dioxide. The material is swollen by the supercritical carbon dioxide at a high pressure. After the material has been allowed to swell... | 12/16/2003 |
| 6630277 | Toner production system Coarsely crushed toner particles comprising at least a binder resin and a colorant are effectively pulverized by a mechanical pulverizer including a generally cylindrical rotor rotating about an axis and a stator surrounding the rotor with a minute gap fr... | 10/07/2003 |
| 6629653 | Process and device for the separation of viscoplastic materials such as plastics from materials such as paper which can be defibrated by mechanical action The invention relates to a process for separating tenaciously elastic materials such as plastics and rubber from materials tearing and/or defiberizing under high mechanical stress, particularly paper, and to a device for performing said process. The proce... | 10/07/2003 |
| 6568612 | Method of and apparatus for disposing waste A waste disposal apparatus comprising a crushing means for crushing waste including a circuit board into fragments, and a circuit board sorting means for sorting fragments of the circuit board from the fragments of the waste crushed by the crushing means ... | 05/27/2003 |
| 6527206 | Method for processing mixed waste, processing plant and buffer silos therefor A method for processing mixed waste in a continuously operating processing plant comprising a plurality of successive stations which are connected to each other by means of at least one conveyor segment and wherein the mixed waste material is processed in... | 03/04/2003 |
| 6467708 | Method of processing municipal waste A method for processing municipal waste substantially reduces the volume of material to be disposed into a landfill by increasing the volume of materials of value collected from the municipal waste and by composting the remaining materials to create a sal... | 10/22/2002 |
| 6372173 | Process for production of three-dimensional objects by means of stereolithography Process for production of three-dimensional objects by stereolithography in which a laser hardens particular areas of constantly succeeding layers of resin fluid. Prior to or during laser light action, the particles, which define physical or mechanical qu... | 04/16/2002 |
| 6306222 | Process for cleaning plastics for recycling them A process for cleaning plastic materials is disclosed, in which foreign materials adhered on and internally intruded into the plastic materials are cleaned to recycle the plastic materials. The process for cleaning plastics to recycle them according to th... | 10/23/2001 |
| 6241168 | Recycling of carpet scrap and compositions employing ultralow density polyethylene (ULDPE) Carpet scrap containing mixtures of polyesters and/or polyamides and polyolefins are compatiblized with ultralow density polyethylene (ULDPE) to make homogeneous thermoplastic blends having useful properties.... | 06/05/2001 |
| 6216967 | Process for disaggregating waste materials which contain at least partially reusable elements A process is disclosed for disaggregating waste materials which contain at least partially reusable elements, mainly metals, plastics and cardboard. The waste materials are stirred in water by mechanical forces, large pieces, in particular plastic pieces,... | 04/17/2001 |
| 6168642 | Industrial utilization of garbage with effective recycling and with optimization in energy production A recycling process for garbage containing a high proportion of paper where printed paper is first separated from the garbage. The garbage is then into pieces and light and heavy components are separated out in a classification tank. The remaining organic... | 01/02/2001 |
| 6123277 | Process and device for making use of plastic-coated or sheathed wiring and waste wire for the separate recovery of metal and pure recyclable plastic The invention relates to a method for the recycling of plastic-coated cable residues, which comprise a metal core and a plastic jacket, wherein the metal parts are separated from the jacket and are separately recovered. The cable residues are communited a... | 09/26/2000 |
| 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 |
| 6095441 | Process of separating mixed plastic waste into light and heavy plastic phases According to the present invention, plastic waste mixture is first comminuted, and if required, subjected to magnetic separation and/or eddy-current separation, by which separable metals are removed. The comminuted plastic waste mixture is then mixed with... | 08/01/2000 |
| 6089479 | Method for treating waste printed circuit boards with molten mixture of inorganic salts A method for treating waste printing circuit boards with molten mixture of inorganic salts comprising actions of: (1) putting the circuit boards into the molten inorganic salts contained in a treating furnace; (2) crushing and stirring for copper foil of ... | 07/18/2000 |
| 6085672 | Apparatus for blowing synthetic resin into furnace An apparatus for blowing synthetic resin into a furnace including a first processing line for processing film-shaped synthetic resins into a granular synthetic resin material; a second processing line for processing non-film-shaped synthetic resins into a... | 07/11/2000 |
| 6059207 | Process for recovering high value polymer from carpet selvage waste The present invention provides an inexpensive process which can be placed in the carpet mill to add value to carpet selvage waste by segregating the various materials used to manufacture the selvage waste. The process for segregating at least one componen... | 05/09/2000 |
| 6007005 | ABS recycling process The present recycling process is accomplished by first shredding used plastics to produce shredded plastics, separating metals and undesirable plastics from the shredded plastics to produce separated plastics, analyzing the material composition of the sep... | 12/28/1999 |
| 5992335 | Method of blowing synthetic resin into furnace and apparatus therefor A method for blowing a synthetic resin material into a furnace which comprises processing film-shaped synthetic resins into a first granular resin material; crushing non-film-shaped synthetic resins into a second granular resin material; pneumatically fee... | 11/30/1999 |
| 5975442 | Cable granulator A granulator for separating the constituent parts of electrical cable containing relatively light-weight plastic covering relatively heavy electrically-conductive material. The granulator includes a first cutter for cutting the cable into short pieces and... | 11/02/1999 |
| 5961054 | Method of recycling and granulating waste container made of resin materials The thermoplastic resin waste containers are crushed into coarsely crushed pieces, an impact-grinding force and a centrifugal force are applied on the coarsely crushed pieces so that oily foreign objects be separated; i.e., the oily foreign objects are se... | 10/05/1999 |
| 5938128 | Process and apparatus for treating composite elements In a process for treating composite elements of solid organic and/or inorganic composite materials-such as composites of metal/metal, plastic/plastic, metal/plastic or mineral composites with metals and/or plastic materials-solid particles are produced fr... | 08/17/1999 |
| 5908165 | Process and apparatus for reprocessing mixed plastics A process and apparatus for reprocessing mixed plastics, more particularly mixed plastics from household refuse. The material being reprocessed is shredded in a shredding stage, agglomerated in an agglomerator wherein volatile substances are sucked off by... | 06/01/1999 |
| 5902976 | System for separating waste materials by enhanced water floatation Improved control for the separation of waste materials, or materials having waste components, is provided by the injection of air, or other gas bubbles, into a water-filled tank while simultaneously depositing the waste containing material to be separated... | 05/11/1999 |
| 5887805 | Compositions of metallic and non-metallic components of wiring assemblies and printed wiring boards Preferred processes to separate metallic and non-metallic constituent components of at least one electronic product are generally comprised of the following steps: (a) repeatedly crushing the at least one electronic product to create a plurality of crushe... | 03/30/1999 |
