By Burning Or Heating Patents (Class 29/403.4)
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Patent number: 8771462Abstract: The present disclosure generally describes techniques suitable for use in the construction or recycling of composite materials, such as thermoplastics. A coated thermoplastic article may comprise a thermoplastic portion coupled to a supramolecular polymer interface layer, with a coating layer applied to a surface of the supramolecular polymer interface layer. Application of heat to the coated thermoplastic article may cause the supramolecular polymer interface layer to undergo a phase change, allowing the coating layer to be removed from the thermoplastic portion. Application of force to the coated thermoplastic article may enhance the removal of the coating layer. Embodiments of methods, compositions, articles and/or systems may be disclosed and claimed.Type: GrantFiled: August 10, 2011Date of Patent: July 8, 2014Assignee: Empire Technology Development LLCInventor: Angele Sjong
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Patent number: 8745834Abstract: A method of removing a stator coil (10) from a stator core (12) of an electrical generator, including vibrating an unbonded portion (50) of the coil (10) until a resin bond material (32) between a bonded portion of the coil (46) and a surface (34) of the core (12) fails due to high cycle fatigue to free the coil (10) from the core (12).Type: GrantFiled: April 6, 2012Date of Patent: June 10, 2014Assignee: Siemens Energy, Inc.Inventors: Keegan M. Ford, Benjamin T. Humphries
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Patent number: 8308843Abstract: A method and a device using pyrolysis for recycling used printed circuit board in which water (moisture) is introduced in the pyrolysis process and a fully sealed low pressure environment is established to ensure that no combustion happens in the pyrolysis process to enhance the safety of the process; pyrolysis gases generated in the process are concentrated and purified to provide useful fuels or chemical materials; therefore, the present invention can reduce process cost, improve recycling efficiency and provide processing device with high safety, thereby enhancing industry usability.Type: GrantFiled: May 26, 2010Date of Patent: November 13, 2012Inventor: Hsieh-Sen Wu
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Patent number: 7789936Abstract: Methods and systems for removing copper from ferrous scrap are described. Some amounts of copper in ferrous scrap are removed by oxidation and subsequent mechanical impact of the oxidized scrap. Further removal of copper from the solid scrap can be achieved by fluxing the copper oxide below the melting point of ferrous scrap using CaO—SiO2—B2O3— and Na2O—SiO2—B2O3-based slags. Using the invention, copper can be removed from ferrous scrap in a natural, cost-effective, and environmental-friendly manner.Type: GrantFiled: August 18, 2004Date of Patent: September 7, 2010Assignee: University of Utah Research FoundationInventors: Weol Dong Cho, Peng Fan
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Patent number: 7461449Abstract: The present invention springs from the discovery that mild acids could be utilized to shear undesired metals away from desired precious metals that have been plated onto circuit board runners or contacts. This shearing action occurs at a high rate when metal scrap segments are immersed in mild acid and excited by application of an electromagnetic field at specific frequencies and power levels. These frequencies and power levels are based on the end metal desired and the metals contained in the scrap and the acid utilized. When mild acid saturated with copper sulfate and loaded with scrap metals is subjected to an electromagnetic field at the appropriate frequency and power levels, copper and nickel molecules are sheared rapidly and absorbed into solution, leaving only the desired metal, such as gold, in a 99.5% pure flake which can be skimmed off the surface of the solution or filtered from the solution.Type: GrantFiled: October 24, 2005Date of Patent: December 9, 2008Inventor: Michael K. Fitch
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Patent number: 7299530Abstract: Disclosed is an apparatus for separating interconnects between, for example, a card and a substrate. The apparatus includes one or more rotationally biased (e.g., spring-loaded, etc.) partial-circle structures (e.g., blades, squeegee, plow, etc.) and one or more temperature-sensitive releases connected to the partial-circle structures. The partial-circle structures are positioned to rotate and separate the interconnects when released by the temperature-sensitive releases. The invention can also include solder reservoirs positioned to receive solder from the interconnects separated by the partial-circle structures.Type: GrantFiled: October 7, 2003Date of Patent: November 27, 2007Assignee: International Business Machines CorporationInventors: Mukta G. Farooq, Ray A. Jackson, David C. Linnell, Frank L. Pompeo
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Patent number: 7296340Abstract: The present invention provides a recycler that recycles 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. The insulating body base of the printed circuit board as the waste printed circuit board can be a thermoplastic resin or a mixture of thermoplastic resin and inorganic loading material. The recycler includes a pressuring device that pressurizes the waste printed circuit board, a heater that heats the waste printed circuit board to a predetermined temperature at which the waste printed circuit board is at least softened, and a filter that filters the resin material from the waste printed circuit board. The heater can be maintain the filter at the predetermined temperature provided by the heater.Type: GrantFiled: July 21, 2005Date of Patent: November 20, 2007Assignee: DENSO CORPORATIONInventors: Atsusi Sakaida, Toshihisa Taniguchi
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Patent number: 7162785Abstract: The recycling of metal materials is performed by efficiently recovering the metal materials from component materials of a process cartridge. To achieve this object, there is provided a method of recycling a process cartridge containing a toner, wherein in a crushing process of a process cartridge containing a recovered toner, a container shape of the process cartridge is subjected to disassembly treatment to an extent of main component parts, the toner is recovered by suction in a step of disassembly treatment, metal materials, such as ferrous materials and aluminum materials, in component materials of the process cartridge are subjected to separation treatment after the step of disassembly treatment, and each of the materials is subjected to melting treatment thereby to change the materials into forms capable of reuse as ferrous materials and aluminum materials.Type: GrantFiled: December 19, 2003Date of Patent: January 16, 2007Assignee: Canon Kabushiki KaishaInventors: Noboru Koumura, Toshio Kayahashi
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Patent number: 7140108Abstract: Provided is a method of designing a device, comprising the steps of determining a disposing process for each component of the device, the disposing process being selectable from a melting process, a shredding process and a renovating process, and designing a connecting part for joining two of the components of the device that would be determined to be disposed by different disposing processes in the determining step so as to be easily separated from each other. Thereby, the amount of work for dismantling the device and separating the components can be substantially reduced, and the component parts can be disposed simultaneously in most part.Type: GrantFiled: May 29, 2001Date of Patent: November 28, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kenji Kobayashi, Daisuke Susa, Kotaro Shige
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Patent number: 7107661Abstract: 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 metallic material and the insulating material, which are separated and retrieved, are possible for recycling. In the method for recycling the printed circuit board, hot filtration equipment 4a and resin-metal separation equipment 51 are used in hot filtration process P400. The waste printed circuit board 1 is heated and force-filtered so that only the insulating material 1a pass through the filter. Then, the insulating material 1a and the metallic material 1b are separated and retrieved. It is preferred that the insulating body base 23 of the printed circuit board 100 as the waste printed circuit board is made of thermoplastic resin or a mixture of thermoplastic resin and inorganic loading material.Type: GrantFiled: December 16, 2002Date of Patent: September 19, 2006Assignee: Denso CorporationInventors: Rikiya Kamimura, Katsumi Nakamura, Kouji Kond, Atsusi Sakaida, Toshihisa Taniguchi
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Patent number: 6986192Abstract: The present invention springs from the discovery that mild acids could be utilized to shear undesired metals away from desired precious metals that have been plated onto circuit board runners or contacts. This shearing action occurs at a high rate when metal scrap segments are immersed in mild acid and excited by application of an electromagnetic field at specific frequencies and power levels. These frequencies and power levels are based on the end metal desired and the metals contained in the scrap and the acid utilized. When mild acid saturated with copper sulfate and loaded with scrap metals is subjected to an electromagnetic field at the appropriate frequency and power levels copper and nickel molecules are sheared rapidly and absorbed into solution, leaving only the desired metal, such as gold, in a 99.5% pure flake which can be skimmed off the surface of the solution or filtered from the solution.Type: GrantFiled: November 21, 2003Date of Patent: January 17, 2006Inventor: Michael K. Fitch
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Patent number: 6966105Abstract: For a workpiece having a metal part bonded to a rubber part, a method is devised to separate the metal and rubber parts. A flame is used to heat a portion of an exposed surface of the metal part, while moving the flame relative to the metal part until substantially all the exposed metal surface is heated. The process is repeated until the metal and rubber parts separate.Type: GrantFiled: December 22, 2003Date of Patent: November 22, 2005Inventor: Jay C. Tankersley
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Patent number: 6951050Abstract: A process and apparatus for recovering conductor material from an installation cable with bunched conductors and plastic insulation cuts the installation cable into segments, presses and rolls the segments at an increased temperature ranging from 70° to 130° C. with the longitudinal axes of the segments perpendicular to directions of the rolling and sieves the segments for separating conductor material from the segments and, thereby, recovering the conductor material.Type: GrantFiled: January 22, 2002Date of Patent: October 4, 2005Inventors: Jan Maraszewski, Witold Maraszewski, Kazimierz Plata, Bronislaw Plata
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Patent number: 6705509Abstract: Discarded printed circuit boards are sorted according to the alloying elements in solder used on the printed circuit boards. After sorting, the printed circuit boards are heated to melt the solder, and the molten solder is collected.Type: GrantFiled: March 22, 2002Date of Patent: March 16, 2004Assignee: Senju Metal Industry Co., Ltd.Inventors: Sakari Tada, Eietsu Hasegawa
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Patent number: 6513218Abstract: Methods and apparatus for extracting a fiber from connector. In accordance with our method the extraction does not compromise any failure evidence located within the ferrule of the fiber connector. The method comprises the steps of metallic etching, followed by adhesive etching, and a final step of heating and applying a load to the ferrule and/or fiber.Type: GrantFiled: April 11, 2001Date of Patent: February 4, 2003Assignee: Telcordia Technologies, Inc.Inventors: Osman S. Gebizlioglu, Mustafa Ozgur
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Publication number: 20030009870Abstract: In order to remove a plate made from a material that can be heated by electromagnetic induction and retained on a supporting member by a heat-fusible adhesive, an inductor is displaced facing at least one strip of the plate in order to heat the strip by induction and heat the adhesive by conduction until the adhesive softens, and a tearing tool is driven so as to tear out the heated strip by hot-peeling. The inductor and the tearing tool are displaced jointly relative to the plate and the supporting member by means of a mobile frame, which is displaced on a stationary frame on which the supporting member and the plate are fixed.Type: ApplicationFiled: September 9, 2002Publication date: January 16, 2003Applicant: Eurocopter, a corporation of the State of FranceInventors: Patrick Boschet, Daniel Brunner, Andre Amari
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Patent number: 6193780Abstract: Process for the recovery of aluminum and energy from used aluminum-plastic packages and oven for implementing such process, which comprises a pretreatment for the recovery of paper, the separation of aluminum and of recyclable products by pyrolysis of polyethylene, essentially for their energy content. The product to be treated is passed into a chamber of which the walls are heated to a temperature preferably between 300° C. and 500° C., the walls being inclined in order to collect into a container a heavy fraction from the polyethylene pyrolysis, whereas the light fraction, which volatilizes, is burnt. The process is carried out in an oven which contains a series of trays, and wherein circulates a heating gas. The upper surface of the oven has the shape of an inverted cone, with an orifice at the apex through which passes its axis. The heavy fraction of the pyrolysis drains therethrough and is collected separately from the aluminum.Type: GrantFiled: July 27, 1998Date of Patent: February 27, 2001Inventors: Jose Cases Rocati, M. Desamparados Olmos Ibañez, JoséManuel Cases Olmos, Vincente Enrique Cases Olmos, Pablo Emilio Cases Olmos